Close ×
Choose your Vehicle
Select your vehicle for a custom shopping experience
Manley Titanium Exhaust Valve Kit - Small Block - ASCS and Wissota
$2,025.10
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.Valves are CrN Slick Coated with inserted hard tips and Manley's Bead Loc? single radius keeper groove.
Magnaflow 07-08 Mini Cooper 1.6L Direct Fit Catalytic Converter
$1,519.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5531351. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed specifically for the 2007-2008 Mini Cooper. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.This Part Fits:
Year
Make
Model
Submodel
2007-2008
Mini
Cooper
Base
2007-2008
Mini
Cooper
S
MagnaFlow Conv DF 06- Audi A3 Quattro 3.2L
$1,464.00
$1,476.50
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49873. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. Designed to fit the 2008 Volkswagen R32 and 2006-2009 Audi A3 Quattro, this direct-fit catalytic converter also interchanges with OE parts 1K0 254 504 RX and 1K0 254 507 DX. Hardware is included to eliminate the hassle of working with corroded factory parts. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.This Part Fits:
Year
Make
Model
Submodel
2006-2009
Audi
A3 Quattro
Base
2008
Volkswagen
R32
Base
Magnaflow 2004 Ford F-150 5.4L Direct Fit Converter
$1,435.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4583705. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. This direct-fit catalytic converter is designed specifically for the 2004 Ford F-150 and interchanges with OE parts 4L3Z-5E212-GD and 4L3Z-5E212-GC. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.This Part Fits:
Year
Make
Model
Submodel
2004
Ford
F-150
Lariat
2004
Ford
F-150
XL
2004
Ford
F-150
XLT
Magnaflow 03-04 Ford Expedition 5.4L Direct Fit Converter
$1,542.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4583078. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed specifically for the 2003-2004 Ford Expedition and interchanges with OE parts 4L1Z-5E212-BB and 3L1Z-5E212-CB. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.This Part Fits:
Year
Make
Model
Submodel
2003-2004
Ford
Expedition
Eddie Bauer
2004
Ford
Expedition
NBX
2003-2004
Ford
Expedition
XLT
2004
Ford
Expedition
XLT Sport
Akrapovic 2025 Audi RSQ8 Evolution Race Line Exhaust System Titanium (link pipe CO-AU/T/5 required)
$4,744.71
Akrapovic 2025 Audi RSQ8 Evolution Race Line Exhaust System Titanium (link pipe CO-AU/T/5 required)
aFe Vulcan Series 2.5in 304SS Cat-Back Exhaust 07-18 Jeep Wrangler (JK) V6-3.6/3.8L w/ Polished Tips
$1,242.15
2-1/2" 304 Stainless Steel Construction: This cat-back exhaust system is constructed of 2-1/2" mandrel-bent 304 stainless steel tubing for maximum strength and durability.High-Flow 304 Stainless Steel Mufflers: This system features high-flow 304 stainless steel mufflers, producing a smooth sound. Quad 3-1/2" Diameter Polished Exhaust Tips: Finishing off this exhaust system are quad 3-1/2" diameter polished stainless steel clamp-on exhaust tips. The tips features a laser etched aFe POWER logo for a unique style.Installation: Utilizing factory style hangers this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation.Computer-Aided Design: Utilizing state-of-the-art computer-aided design technology, this exhaust system is designed for custom, high tolerance factory fitment.MIG-Welded: 100% MIG-Welded for race-proven strength and durability.Emissions Disclaimer: This product does not require a CARB EO#.aFe POWER exhaust systems are engineered and manufactured in our Corona, California facility.This Part Fits:
Year
Make
Model
Submodel
2016
Jeep
Grand Cherokee
75th Anniversary
2018-2019
Jeep
Grand Cherokee
Altitude
2018-2019
Jeep
Grand Cherokee
High Altitude
2011-2019
Jeep
Grand Cherokee
Laredo
2011-2019
Jeep
Grand Cherokee
Limited
2011-2019
Jeep
Grand Cherokee
Overland
2012
Jeep
Grand Cherokee
Overland Summit
2014-2019
Jeep
Grand Cherokee
Summit
2017-2019
Jeep
Grand Cherokee
Trailhawk
2011
Jeep
Wrangler
70th Anniversary
2016
Jeep
Wrangler
75th Anniversary
2007-2017
Jeep
Wrangler
Rubicon
2007-2017
Jeep
Wrangler
Sahara
2010-2017
Jeep
Wrangler
Sport
2016
Jeep
Wrangler
Sport S
2011
Jeep
Wrangler
Unlimited 70th Anniversary
2016
Jeep
Wrangler
Unlimited 75th Anniversary
2007-2017
Jeep
Wrangler
Unlimited Rubicon
2007-2017
Jeep
Wrangler
Unlimited Sahara
2010-2017
Jeep
Wrangler
Unlimited Sport
2016
Jeep
Wrangler
Unlimited Sport S
2007-2010
Jeep
Wrangler
Unlimited X
2007-2010
Jeep
Wrangler
X
2018
Jeep
Wrangler JK
Rubicon
2018
Jeep
Wrangler JK
Sahara
2018
Jeep
Wrangler JK
Sport
2018
Jeep
Wrangler JK
Sport S
2018
Jeep
Wrangler JK
Unlimited Rubicon
2018
Jeep
Wrangler JK
Unlimited Sahara
2018
Jeep
Wrangler JK
Unlimited Sport
2018
Jeep
Wrangler JK
Unlimited Sport S
Magnaflow 20-21 Dodge Charger 3.6L Direct Fit Converter
$1,450.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 6561141. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed to fit the 2020-2021 Dodge Charger, 2020-2021 Dodge Challenger, and additional vehicles. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.This Part Fits:
Year
Make
Model
Submodel
2020
Chrysler
300
Limited
2020-2021
Chrysler
300
S
2020-2021
Chrysler
300
Touring
2020-2021
Chrysler
300
Touring L
2020-2021
Dodge
Challenger
GT
2020-2021
Dodge
Challenger
SXT
2020-2021
Dodge
Charger
GT
2020-2021
Dodge
Charger
Pursuit
2020-2021
Dodge
Charger
SXT
Magnaflow 07-15 Lexus IS350 2.5L Direct Fit Catalytic Converter
$1,460.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5531446. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed to fit the 2007-2015 Lexus IS250, 2013-2015 Lexus GS350, and additional vehicles. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.This Part Fits:
Year
Make
Model
Submodel
2013-2015
Lexus
GS350
Base
2013-2015
Lexus
GS350
F Sport
2007,2014-2015
Lexus
IS250
Base
2014-2015
Lexus
IS250
C
2014-2015
Lexus
IS250
C F Sport
2014-2015
Lexus
IS250
F Sport
2016-2017
Lexus
IS300
Base
2016-2017
Lexus
IS300
F Sport
2014-2017
Lexus
IS350
Base
2014-2015
Lexus
IS350
C
2014-2015
Lexus
IS350
C F Sport
2014-2017
Lexus
IS350
F Sport
2016-2017
Lexus
RC300
Base
2016-2017
Lexus
RC300
F Sport
2015-2017
Lexus
RC350
Base
2015-2017
Lexus
RC350
F Sport
Magnaflow 10-14 Honda Insight 1.3L Direct Fit Catalytic Converter
$1,018.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5531030. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed specifically for the 2010-2014 Honda Insight. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.This Part Fits:
Year
Make
Model
Submodel
2011-2014
Honda
Insight
Base
2010-2014
Honda
Insight
EX
2010-2014
Honda
Insight
LX
Magnaflow 00-02 Jaguar S-Type 3.0L Direct Fit Catalytic Converter
$1,295.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4481937. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed to fit the 2000-2004 Lincoln LS and 2000-2002 Jaguar S-Type. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.This Part Fits:
Year
Make
Model
Submodel
2000-2002
Jaguar
S-Type
Base
2000-2004
Lincoln
LS
Base
2001-2003
Lincoln
LS
LSE
aFe Gemini XV 3in 304SS CB Exhaust w/ Cutout 14-19 GM Trucks 4.3/5.3L w/ Pol Tips - CrewCab/Extended
$1,656.90
This cat-back exhaust system is constructed of 3" mandrel-bent 304 stainless steel tubing for maximum strength and durability. This system features a high-flow stainless steel, producing an aggressive sound. Muffler finish may vary. Finishing off this exhaust system are dual 4-1/2" diameter polished 304 stainless steel clamp-on exhaust tips. The tips feature an aFe POWER logo plate riveted on for a unique style. Gemini XV exhaust features an electronically controlled exhaust cutout valve to quickly switch between mild and aggressive tones at the push of a button. This kit includes two key fob remotes, control module, valve motor, and all necessary wiring. It's a simple installation, requiring no cutting of any wires or interference of the automobile's electronics. Utilizing factory style hangers this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation. Utilizing state-of-the-art computer-aided design technology, this exhaust system is designed for custom, high tolerance factory fitment. 100% MIG-Welded for race-proven strength and durability.This Part Fits:
Year
Make
Model
Submodel
2016-2018
Chevrolet
Silverado 1500
Custom
2014-2018
Chevrolet
Silverado 1500
High Country
2015-2018
Chevrolet
Silverado 1500
LS
2014-2018
Chevrolet
Silverado 1500
LT
2014-2018
Chevrolet
Silverado 1500
LTZ
2015-2018
Chevrolet
Silverado 1500
SSV
2014-2018
Chevrolet
Silverado 1500
WT
2019
Chevrolet
Silverado 1500 LD
Custom
2019
Chevrolet
Silverado 1500 LD
LT
2019
Chevrolet
Silverado 1500 LD
WT
2014-2018
GMC
Sierra 1500
Base
2014-2018
GMC
Sierra 1500
Denali
2014-2018
GMC
Sierra 1500
SLE
2014-2018
GMC
Sierra 1500
SLT
2019
GMC
Sierra 1500 Limited
Base
2019
GMC
Sierra 1500 Limited
SLE
aFe Gemini XV 3in 304 SS Cat-Back Exhaust w/ Cutout 14-19 GM Trucks 4.3L/5.3L w/ Black Tips
$1,823.85
This cat-back exhaust system is constructed of 3 IN mandrel-bent 304 stainless steel tubing for maximum strength and durability. This system features a high-flow stainless steel, producing an aggressive sound. Muffler finish may vary. Finishing off this exhaust system are dual 4-1/2 IN diameter black 304 stainless steel clamp-on exhaust tips. The tips feature an aFe POWER logo plate riveted on for a unique style. Gemini XV exhaust features an electronically controlled exhaust cutout valve to quickly switch between mild and aggressive tones at the push of a button. This kit includes two key fob remotes, control module, valve motor, and all necessary wiring. It's a simple installation, requiring no cutting of any wires or interference of the automobile's electronics. Utilizing factory style hangers this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation. Utilizing state-of-the-art computer-aided design technology, this exhaust system is designed for custom, high tolerance factory fitment. 100% MIG-Welded for race-proven strength and durability.This Part Fits:
Year
Make
Model
Submodel
2016-2018
Chevrolet
Silverado 1500
Custom
2014-2018
Chevrolet
Silverado 1500
High Country
2015-2018
Chevrolet
Silverado 1500
LS
2014-2018
Chevrolet
Silverado 1500
LT
2014-2018
Chevrolet
Silverado 1500
LTZ
2015-2018
Chevrolet
Silverado 1500
SSV
2014-2018
Chevrolet
Silverado 1500
WT
2019
Chevrolet
Silverado 1500 LD
Custom
2019
Chevrolet
Silverado 1500 LD
LT
2019
Chevrolet
Silverado 1500 LD
WT
2014-2018
GMC
Sierra 1500
Base
2014-2018
GMC
Sierra 1500
Denali
2014-2018
GMC
Sierra 1500
SLE
2014-2018
GMC
Sierra 1500
SLT
2019
GMC
Sierra 1500 Limited
Base
2019
GMC
Sierra 1500 Limited
SLE
Magnaflow 03-11 Toyota Camry 2.4L Direct Fit Converter
$1,381.00
$1,910.10
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5631373. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. This direct-fit catalytic converter is designed specifically for the 2003-2011 Toyota Camry and interchanges with OE parts 25051-28180 and 25051-28300. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.This Part Fits:
Year
Make
Model
Submodel
2005-2006,2009
Toyota
Camry
Base
2007-2008
Toyota
Camry
CE
2007-2011
Toyota
Camry
Hybrid
2003-2009
Toyota
Camry
LE
2003-2009
Toyota
Camry
SE
2003-2009
Toyota
Camry
XLE
Magnaflow 13-17 Nissan Sentra 1.8L Direct-Fit Catalytic Converter
$1,394.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5531271. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed specifically for the 2013-2017 Nissan Sentra. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.This Part Fits:
Year
Make
Model
Submodel
2013-2017
Nissan
Sentra
S
2013-2017
Nissan
Sentra
SL
2013-2017
Nissan
Sentra
SR
2013-2017
Nissan
Sentra
SV
Magnaflow 01-02 Dodge Ram 2500 5.9L Direct Fit Converter
$1,939.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4583497. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. Designed to fit the 2001-2002 Dodge Ram 2500, 2001 Dodge Ram 1500, and more, this direct-fit catalytic converter also interchanges with OE parts 5210 3344AE and 5210 3344AA, among others. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.This Part Fits:
Year
Make
Model
Submodel
2001
Dodge
Ram 1500
Laramie
2001
Dodge
Ram 1500
SLT
2001
Dodge
Ram 1500
Sport
2001
Dodge
Ram 1500
ST
2001-2002
Dodge
Ram 2500
Base
2001
Dodge
Ram 3500
Base
aFe 14-15 Infiniti Q50 V6 3.7L Takeda 2.5in 305 SS Cat Back Exhaust System w/ Black Tips
$1,604.40
This cat-back exhaust system is constructed of 2-1/2 IN mandrel-bent 304 stainless steel tubing for maximum strength and durability. This system features high-flow 304 stainless steel polished mufflers, producing a aggressive sound. The mufflers has a polished finish for ultimate corrosion resistance. Finishing off this exhaust system are dual 4-1/2 IN diameter black 304 stainless steel clamp-on exhaust tips. The tips features a laser etched Takeda logo for a unique style. This system produces an aggressive sound unleashing all available horsepower and torque. Utilizing a factory style flange and hangers this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation. State-of-the-art computer-aided design technology is utilized for precise vehicle fitment. 100% MIG-Welded for race-proven strength and durability.This Part Fits:
Year
Make
Model
Submodel
2014-2015
INFINITI
Q50
Base
2014-2015
INFINITI
Q50
Premium
2014-2015
INFINITI
Q50
Sport
Manley Titanium Exhaust Valve Kit - Small Block - ASCS and Wissota
$2,025.10
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.Valves are CrN Slick Coated with inserted hard tips and Manley's Bead Loc? single radius keeper groove.
Manley Titanium Exhaust Valve Kit - Small Block - ASCS and Wissota
$2,025.10
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.Valves are CrN Slick Coated with inserted hard tips and Manley's Bead Loc? single radius keeper groove.
Manley Titanium Exhaust Valve Kit - Small Block Chevrolet - All Pro
$2,102.19
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.All valves have inserted hard tips and Manley's Bead Loc? single radius keeper groove."HT" suffix indicates high temperature material.
Manley Titanium Exhaust Valve Kit - Big Block Chevrolet - Brodix SR20 - Dart 20 Degree
$1,642.36
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.These valves have Manley's Bead Loc? single radius keeper grooves.Part numbers with an "H" suffix indicates higher hardness material and those without a "T" suffix do not include a hard tip. Tip protection is REQUIRED.
Manley Titanium Exhaust Valve Kit - Big Block Chevrolet - Brodix SR20 - Dart 20 Degree
$1,676.30
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.These valves have Manley's Bead Loc? single radius keeper grooves.Part numbers with an "H" suffix indicates higher hardness material and those without a "T" suffix do not include a hard tip. Tip protection is REQUIRED.
Manley Titanium Exhaust Valve Kit - Noonan Race Engineering - NRE - X1 Pro Mod
$1,642.36
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards."H" suffix indicates higher hardness material."B" suffix indicates a Bead Loc? keeper groove."C" suffix indicates premium CrN seat coating (See pg. 53 for more details).*These valves do not come with a hardened tip. Tip protection is REQUIRED. Manley wear cap P/N 42104, 42104TM, or Manley LocCap System.
Manley Titanium Exhaust Valve Kit - Noonan Race Engineering - NRE - X1/Super 6
$2,102.19
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards."H" suffix indicates higher hardness material."B" suffix indicates a Bead Loc? keeper groove."C" suffix indicates premium CrN seat coating (See pg. 53 for more details).*These valves do not come with a hardened tip. Tip protection is REQUIRED. Manley wear cap P/N 42104, 42104TM, or Manley LocCap System.
Manley Titanium Exhaust Valve Kit - Noonan Race Engineering - NRE - X1/Super 6
$1,642.36
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards."H" suffix indicates higher hardness material."B" suffix indicates a Bead Loc? keeper groove."C" suffix indicates premium CrN seat coating (See pg. 53 for more details).*These valves do not come with a hardened tip. Tip protection is REQUIRED. Manley wear cap P/N 42104, 42104TM, or Manley LocCap System.
Manley Titanium Exhaust Valve Kit - Big Block Chevrolet - M&M X20
$1,642.36
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.These valves have Manley's Bead Loc? single radius keeper grooves.Part numbers with an "H" suffix indicates higher hardness material and those without a "T" suffix do not include a hard tip. Tip protection is REQUIRED.
Manley Titanium Exhaust Valve Kit - Big Block Chevrolet - M&M X20
$1,642.36
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.These valves have Manley's Bead Loc? single radius keeper grooves.Part numbers with an "H" suffix indicates higher hardness material and those without a "T" suffix do not include a hard tip. Tip protection is REQUIRED.
Manley Titanium Exhaust Valve Kit - Small Block Chevrolet - M&M Revolution
$1,642.36
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.These valves feature Manley's Bead Loc? single radius keeper grooves.These valves do not come with a hardened tip. Tip protection is REQUIRED. Manley wear cap P/N 42139 or 42139TM.
Manley Titanium Exhaust Valve Kit - Small Block Chevrolet - All Pro
$1,651.22
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.All valves have inserted hard tips and Manley's Bead Loc? single radius keeper groove."HT" suffix indicates high temperature material.
Manley Titanium Exhaust Valve Kit - Small Block Chevrolet - All Pro
$1,651.22
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.All valves have inserted hard tips and Manley's Bead Loc? single radius keeper groove."HT" suffix indicates high temperature material.
Manley Titanium Exhaust Valve Kit for Small Block Chevrolet AFR Eliminator Heads
$1,559.38
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both intake and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.All valves have inserted hard tips and feature Chevy LS .060" single radius) style keeper grooves.*Use Manley valve lock P/N 13098-16 (7?) or 13153-16 (10?) depending on your spring/retainer choice.**Manley stem size is .3135". AFR heads have guides sized to .3147" (nominal). Manley strongly recommends that all guides be checked and correctly sized for the Manley valve stem sizes listed to achieve the proper clearances.
Manley Titanium Exhaust Valve Kit - Small Block Chevrolet - GB 2300
$1,651.22
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.All valves have inserted hard tips and Manley's Bead Loc? single radius keeper groove."HT" suffix indicates high temperature material.
Manley Titanium Exhaust Valve Kit - Small Block Chevrolet - GB 2000
$1,651.22
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.All valves have inserted hard tips and Manley's Bead Loc? single radius keeper groove."HT" suffix indicates high temperature material.
Manley Titanium Exhaust Valve Kit - Small Block Chevrolet - All Pro
$1,651.22
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.All valves have inserted hard tips and Manley's Bead Loc? single radius keeper groove."HT" suffix indicates high temperature material.
Manley Titanium Exhaust Valve Kit - Small Block Chevrolet - All Pro
$1,651.22
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both Exhaust and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.All valves have inserted hard tips and Manley's Bead Loc? single radius keeper groove."HT" suffix indicates high temperature material.
Manley Titanium Exhaust Valve Kit for Small Block Chevrolet AFR Eliminator Heads
$1,559.38
Titanium Valves for Weight Reduction: Ideal for reducing valve train weight, improving engine efficiency, and enhancing overall performance.High-RPM Capabilities: Tailored for high-rpm and extended high-rpm applications, allowing for higher engine speeds and compatibility with aggressive camshaft profiles.One-Piece Forged Construction: Manley titanium valves feature one-piece forged construction with grain flow, ensuring durability and minimizing potential weak points compared to head-welded alternatives.State-of-the-Art Machining: Meticulously machined in state-of-the-art CNC turning centers and valve stem grinders, maintaining exacting tolerances for optimal valve performance.Exceptional Titanium Alloys for Durability: Manley utilizes the finest titanium alloys for both intake and exhaust valves, striking a perfect balance between mechanical properties, hardness, ductility, and fatigue strength at specific temperatures.Rigorous Quality Control for Reliability: Each Manley titanium valve undergoes a stringent final inspection process to ensure uncompromising quality, performance, and reliability.Tight Tolerance Delivery: Strict quality control measures enable the delivery of valves within tight tolerances, meeting the highest precision standards.All valves have inserted hard tips and feature Chevy LS .060" single radius) style keeper grooves.*Use Manley valve lock P/N 13098-16 (7?) or 13153-16 (10?) depending on your spring/retainer choice.**Manley stem size is .3135". AFR heads have guides sized to .3147" (nominal). Manley strongly recommends that all guides be checked and correctly sized for the Manley valve stem sizes listed to achieve the proper clearances.