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Manley Race Series Chevy Big Block Exhaust Valve – 1.880 in. Head Dia., 5.422 in. O/A Length, 0.3415 in. Stem
$22.90
SKU: 11717-1
Manley Valve – Exhaust, Valve-BBC R/M 1.880.
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
- 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.
GTIN: 00807298007588
Weight | 0.500 lbs |
---|---|
Dimensions | 7.000 × 2.500 × 2.500 in |
Product Market | Domestic |
Head Diameter | 1.880 IN |
Stem Diameter | 0.3415 IN |
O/A Length | 5.422 IN |
Tip Length | 0.250 IN |
Margin Width | 0.075 IN |
Seat Width | 0.100 IN |
Top of Head | 20 Degree Dish |
Underhead Angle | 25.00 DEG |
Underhead Radius | 3/8 IN |
Valve Series | Race Series |
Valve Sub-Series | Race Master |
Product Type | Engine Exhaust Valve |
Valve Quantity | 1 |
Engine Detail – Web | Big Block |
Makes
Chevrolet
Engines
Big Block
Instructions: Enter a value in the un-shaded boxes below as they pertain to your engine.
Note: For pistons BELOW the block @ TDC – value in box must be a POSITIVE number (.000)
Note: For pistons ABOVE the block @ TDC – value in box must be a NEGATIVE number (-.000)
Note: For a DISH piston – value in box must be a POSITIVE number (0.0)
Note: For a DOME piston – value in box must be a NEGATIVE number (-0.0)
Note: Manipulate the DOME/DISH & PISTON to DECK volumes to get the ratio you want.