Manley?s Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM.
Head Diameter: 1.485 in. - Stem Diameter: 0.2355 in. - O/A : 4.765 in. Backcut: 0.100" x 30? - Set of 8
Manley Valve - Exhaust Valve - Ti - Briggs & Stratton Custom - .2475 Stem
Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.
Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.
Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.
Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.
Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.
The Manley Performance Race Master Series Intake Valve Set is designed specifically for high-performance Ford Modular Coyote 5.0L Gen III engines, providing reliable durability and optimized airflow for demanding racing applications. Crafted from high-quality stainless steel, these valves are engineered to withstand the rigors of high RPM operation, making them ideal for bracket, drag, and oval track racing under 8,000 RPM. The set includes eight valves, featuring a head diameter of 1.485 inches and a stem diameter of 0.2355 inches, with an overall length of approximately 4.77 inches. These valves are fully machined with swirl-polished under-head areas and combustion faces that promote better airflow and more efficient combustion, ultimately enhancing engine performance and power output. The inclusion of chrome stems and hard tips ensures durability and resistance to wear, extending the lifespan of the valves under intense racing conditions. Designed with versatility in mind, these valves come in various shapes including the Race Master (Straight Stem) and Race Flo options, allowing racers to select the best fit for their specific engine setup. Recommended especially for alcohol engines, these valves are the optimal choice for exhaust applications where durability and performance are critical. The set is fully assembled and ready for installation, providing a dependable upgrade for serious racers seeking to maximize their engine's potential. Operating with precision and resilience, the Manley Race Series valves are a critical component for achieving top-tier performance on the track, combining advanced manufacturing with race-proven features for competitive edge and long-lasting reliability.
Features:
Designed for engines operating under 8,000 RPM, suitable for bracket, drag, and oval track racing
Constructed from high-quality stainless steel for durability and corrosion resistance
Swirl polished under-head areas and fully machined combustion faces optimize airflow and combustion efficiency
Includes chrome stems and hard tips for enhanced longevity and wear resistance
Available in various shapes including Race Master (Straight Stem) and Race Flo to suit different engine requirements
Recommended for alcohol engines, ensuring reliable performance in demanding conditions
Head Diameter: 1.485 inches; Stem Diameter: 0.2355 inches; Overall Length: approximately 4.77 inches
Part Number: 12628-8, manufactured by Manley Performance for high-performance racing applications
Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1
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