Engines and Components› Camshafts and Valvetrain
Manley Performance
SBC R/F 2.020in Intake Valve
SKU: M004 11566-1
Moderate — 2–4 hours
Description
Part #: 11566-1
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.
Intake Valve - Race Flo - 2.020 in Head - 0.342 in Valve Stem - 4.911 in Long - Stainless - Small Block Chevy / Ford - Each
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
MIA's Description
This intake valve features a 2.020" head diameter, a 0.3415" stem diameter, and an overall length of 4.911". It is constructed from durable stainless steel and includes hardened tips above the keeper grooves to prevent rocker arm wear. The Race Flo design is "necked-down" for improved performance.
Fitment
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Specifications
| Brand | Manley Performance |
| Part Number | M004 11566-1 |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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