Lightweight 4340 forged steel crankshaftSupplied with our Pro Series Lightweight I-Beam connecting rods with 7/16? ARP 2000 cap screws2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pinsHorsepower range is 750 with the ARP 8740 and 1,500 with the optional ARP 2000 cap screws

Lightweight 4340 forged steel crankshaft4340 Forged steel H-Beam connecting rods with 7/16? ARP 8740 or optional ARP 2000 cap screws*2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pinsHorsepower range is 750 with the ARP 8740 and 1,500 with the optional ARP 2000 cap screws

Lightweight 4340 forged steel crankshaft4340 Forged steel H-Beam connecting rods with 7/16? ARP 8740 or optional ARP 2000 cap screws*2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pinsHorsepower range is 750 with the ARP 8740 and 1,500 with the optional ARP 2000 cap screws

Lightweight 4340 forged steel crankshaft4340 Forged steel H-Beam connecting rods with 7/16? ARP 8740 or optional ARP 2000 cap screws*2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pinsHorsepower range is 750 with the ARP 8740 and 1,500 with the optional ARP 2000 cap screws

Lightweight 4340 forged steel crankshaft4340 Forged steel H-Beam connecting rods with 7/16? ARP 8740 or optional ARP 2000 cap screws*2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pinsHorsepower range is 750 with the ARP 8740 and 1,500 with the optional ARP 2000 cap screws

Lightweight 4340 forged steel crankshaft4340 Forged steel H-Beam connecting rods with 7/16? ARP 8740 or optional ARP 2000 cap screws*2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pinsHorsepower range is 750 with the ARP 8740 and 1,500 with the optional ARP 2000 cap screws

Lightweight 4340 forged steel crankshaft4340 Forged steel H-Beam connecting rods with 7/16? ARP 8740 or optional ARP 2000 cap screws*2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pinsHorsepower range is 750 with the ARP 8740 and 1,500 with the optional ARP 2000 cap screws

Lightweight 4340 forged steel crankshaft4340 Forged steel H-Beam connecting rods with 7/16? ARP 8740 or optional ARP 2000 cap screws*2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pinsHorsepower range is 750 with the ARP 8740 and 1,500 with the optional ARP 2000 cap screws

Lightweight Design, 4340 Non-Twist Forging: Our crankshafts feature a lightweight 4340 non-twist forging, ensuring durability and performance.Enhanced Strength: A multi-step heat treatment process and nitriding enhance the crankshafts' strength and longevity.Micro-Polished Journals: Large radius journals are micro-polished to reduce friction and enhance performance.Rigorous Quality Assurance: Each crankshaft undergoes stress relief, shot peening, and 100% magnafluxing to meet our stringent quality standards.

Experience the pinnacle of connecting rod technology with our Pro Series rods, designed for ultimate performance.Superior Materials: These rods are available in two exceptional materials: forged 4340 or 300M vacuum degassed steel alloys, engineered for unparalleled performance and durability.NHRA Legal Certification: Certain SKUs within the Pro Series I-Beam range have earned "NHRA Legal" certification, ensuring compliance with NHRA legality standards for Stock and Super Stock racing categories.Versatile Weight Options: Our Pro Series I-Beam connecting rods offer multiple weights tailored to specific markets, including Tour Lites?, Lightweights, Standard Weights, and Heavy Weights, aligning perfectly with your engine's needs and performance objectives.

Manley Valve Lock/Keeper, LOC-7 DEG .3415 BEAD LocCap.

Manley Valve Lock/Keeper, LOC-TI 10 DEG +.050 .3110.

Manley Valve Lock/Keeper, LOC-TI S7 .3415 +.050.

Manley Valve Lock/Keeper, LOC-TI CAPT.3110 -.050 B/L.

Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust valves, tested at 40,000 psi and 1400?F, impressively endured up to 100,000,000 (one hundred million) cycles. In contrast, competitors' offerings failed after just 100,000 cycles, showcasing a staggering 1000 times better fatigue life.Designed for High Temperature Gasoline Engines: Engineered for superior performance in high-temperature gasoline engines.Chrome Stems and Hard Tips: Incorporating chrome stems and hard tips for enhanced durability and longevity.Optimized Combustion: Swirl polished under head areas and fully machined combustion faces for improved airflow and combustion efficiency.XH-428 for Exhaust: No competitor worldwide offers the exceptional XH-428 as exhaust valve material. It boasts nearly double the ultimate tensile strength at 1500?F compared to the competition's EV-8.NK-844 for Intake: Our intake valve material, NK-844, is equally unmatched, displaying over four times the ultimate tensile strength of the competition's best intake valve material at 1000?F.

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.

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.These valves have an inserted hard tip and an O.E. style single radius keeper groove.* Use Manley valve lock P/N 13098-16 (7 degree) or 13153-16 (10 degree) depending on your spring/retainer choice.

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.

Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust valves, tested at 40,000 psi and 1400?F, impressively endured up to 100,000,000 (one hundred million) cycles. In contrast, competitors' offerings failed after just 100,000 cycles, showcasing a staggering 1000 times better fatigue life.Designed for High Temperature Gasoline Engines: Engineered for superior performance in high-temperature gasoline engines.Chrome Stems and Hard Tips: Incorporating chrome stems and hard tips for enhanced durability and longevity.Optimized Combustion: Swirl polished under head areas and fully machined combustion faces for improved airflow and combustion efficiency.XH-428 for Exhaust: No competitor worldwide offers the exceptional XH-428 as exhaust valve material. It boasts nearly double the ultimate tensile strength at 1500?F compared to the competition's EV-8.NK-844 for Intake: Our intake valve material, NK-844, is equally unmatched, displaying over four times the ultimate tensile strength of the competition's best intake valve material at 1000?F.

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.

Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust valves, tested at 40,000 psi and 1400?F, impressively endured up to 100,000,000 (one hundred million) cycles. In contrast, competitors' offerings failed after just 100,000 cycles, showcasing a staggering 1000 times better fatigue life.Designed for High Temperature Gasoline Engines: Engineered for superior performance in high-temperature gasoline engines.Chrome Stems and Hard Tips: Incorporating chrome stems and hard tips for enhanced durability and longevity.Optimized Combustion: Swirl polished under head areas and fully machined combustion faces for improved airflow and combustion efficiency.XH-428 for Exhaust: No competitor worldwide offers the exceptional XH-428 as exhaust valve material. It boasts nearly double the ultimate tensile strength at 1500?F compared to the competition's EV-8.NK-844 for Intake: Our intake valve material, NK-844, is equally unmatched, displaying over four times the ultimate tensile strength of the competition's best intake valve material at 1000?F.

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.

Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.

Fully machined billet steel camshaft and crankshaft sprocketsRoller chain designed with .250" diameter rollersNine keyway steel crankshaft sprocket enabling different settings: 0?, +/- 2?, +/- 4?, +/- 6?, +/- 8?Camshaft sprockets are machined for and include a captive Torrington thrust bearingNo grinding/modifying of timing cover requiredNOT recommended for valve spring pressures exceeding 450 lbs.

Fully machined billet steel camshaft and crankshaft sprocketsRoller chain designed with .250" diameter rollersNine keyway steel crankshaft sprocket enabling different settings: 0?, +/- 2?, +/- 4?, +/- 6?, +/- 8?Camshaft sprockets are machined for and include a captive Torrington thrust bearingNo grinding/modifying of timing cover requiredNOT recommended for valve spring pressures exceeding 450 lbs.

Fully machined billet steel camshaft and crankshaft sprocketsRoller chain designed with .250" diameter rollersNine keyway steel crankshaft sprocket enabling different settings: 0?, +/- 2?, +/- 4?, +/- 6?, +/- 8?Camshaft sprockets are machined for and include a captive Torrington thrust bearingNo grinding/modifying of timing cover requiredNOT recommended for valve spring pressures exceeding 450 lbs.This Part Fits: Year Make Model Submodel 2006-2007 Cadillac CTS V 2005-2007 Chevrolet Corvette Base 2005-2006 Chevrolet SSR Base 2006-2008 Chevrolet Trailblazer SS 2005-2006 Pontiac GTO Base

Fully machined billet steel camshaft and crankshaft sprocketsRoller chain designed with .250" diameter rollersCrank sprocket includes three keyways enabling different settings: -4, 0, or +4 degrees of timingCrank sprocket includes three keyways enabling either 0 degress or +/- 4 degress of timingCamshaft sprockets are machined for and include a brass wear shim or a captive Torrington thrust bearing

Fully machined billet steel camshaft and crankshaft sprocketsRoller chain designed with .250" diameter rollersCrank sprocket includes three keyways enabling different settings: -4, 0, or +4 degrees of timingCrank sprocket includes three keyways enabling either 0 degress or +/- 4 degress of timingCamshaft sprockets are machined for and include a brass wear shim or a captive Torrington thrust bearing

Fully machined billet steel camshaft and crankshaft sprocketsRoller chain designed with .250" diameter rollersNine keyway steel crankshaft sprocket enabling different settings: 0?, +/- 2?, +/- 4?, +/- 6?, +/- 8?Camshaft sprockets are machined for and include a captive Torrington thrust bearingNo grinding/modifying of timing cover requiredNOT recommended for valve spring pressures exceeding 450 lbs.

Fully machined billet steel camshaft and crankshaft sprocketsRoller chain designed with .250" diameter rollersCrank sprocket includes three keyways enabling different settings: -4, 0, or +4 degrees of timingCrank sprocket includes three keyways enabling either 0 degress or +/- 4 degress of timingCamshaft sprockets are machined for and include a brass wear shim or a captive Torrington thrust bearing

Fully machined billet steel camshaft and crankshaft sprocketsRoller chain designed with .250" diameter rollersCrank sprocket includes three keyways enabling different settings: -4, 0, or +4 degrees of timingCrank sprocket includes three keyways enabling either 0 degress or +/- 4 degress of timingCamshaft sprockets are machined for and include a brass wear shim or a captive Torrington thrust bearing