Manley Race Series Chevy Big Block Exhaust Valve Kit – 1.900 in. Head Dia., 5.422 in. O/A Length, 0.3715 in. Stem
Original price was: $239.60.
Your Price: $183.28Current price is: $183.28.
SKU: 11707-8
Manley Valve – Exhaust, Valve-BBC R/M 1.900
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: 00807298001746
| Product Market | Domestic |
|---|---|
| Head Diameter | 1.900 IN |
| Stem Diameter | 0.3715 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 | 9 Degree Dish |
| Underhead Angle | 15.00 DEG |
| Underhead Radius | 1/2 IN |
| Valve Series | Race Series |
| Valve Sub-Series | Race Master |
| Product Type | Engine Exhaust Valve Kit |
| Valve Quantity | 8 |
| 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.
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