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.
Features
- 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.
Specs
- 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
- Product Market: Domestic
- Head Diameter: 1.485
- Valve Head Diameter: 1.485
- Stem Diameter: 0.2355
- Valve Stem Diameter: 0.2355
- O/A Length: 4.765
- Valve Length: 4.765
- Valve Tip Length: 0.310
- Tip Length: 0.310
- Margin Width: 0.050
- Seat Width: 0.060
- Top of Head: 7 Degree Dish
- Valve Head Shape: 7 Degree Dish
- Underhead Angle: 12.00
- Underhead Radius: 5/16
- Valve Series: Race Series
