Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) 1977-ford-ltd-esi7267521 The four settings are: +50

The four settings are: +50 Horsepower

Performace output is improved thanks to a careful selection of better materials and efficient winding ratios

"name": "What size mounting hole does it need

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Manley Chevrolet LT1 6.2L 2.120in Head Diameter Race Flo Intake Valves (Set of 8) 1977-ford-ltd-esi7267521 The four settings are: +50Manley 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. 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