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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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."HT" suffix indicates high temperature material.Available with conventional square or Manley's Bead Loc? single radius keeper grooves.

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.

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.

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.

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.

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.

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.

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.

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.This Part Fits: Year Make Model Submodel 1997-2001 Honda Prelude Base 1997-2001 Honda Prelude Type SH 1993-1996 Honda Prelude VTEC

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.This Part Fits: Year Make Model Submodel 1997 Acura CL Base 1994-1997 Honda Accord EX

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.This Part Fits: Year Make Model Submodel 1996-2000 Honda Civic CX 1996-2000 Honda Civic DX 1992-1995 Honda Civic EX 1996-2000 Honda Civic HX 1996-2000 Honda Civic LX 1992-1995 Honda Civic Si 1999 Honda Civic Value Package 1996-1997 Honda Civic del Sol S 1993-1997 Honda Civic del Sol Si

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.

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.

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.

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.