Wilwood HD 36 Curved Vane Spec-37 Rotor - LH - .810" Width - 11.75" Diameter - 8 x 7" Bolt Circle - .326" Hole - 8.5 lbs. 33009BK ChevySince 1938

ChevySince 1938

the HEAT produces high output for stock and MSD applications plus has a built-in rev limiter that is more accurate and easier to set with the engine running

7L LT1/LT4 and 4

comes from the factory with 8AN inlet fittings

Plastic Liner

Wilwood HD 36 Curved Vane Spec-37 Rotor - LH - .810" Width - 11.75" Diameter - 8 x 7" Bolt Circle - .326" Hole - 8.5 lbs. 33009BK ChevySince 1938Wilwood's HD 36 Curved Vane Spec 37 rotors are manufactured from a proprietary iron alloy developed to withstand extreme temperatures with the highest possible degree of resistance against distortion, warping, cracking, and wear. The formulation for this alloy is a derivative of technology and materials that were significant in the development of the extreme duty military spec rotors that are manufactured by Wilwood. Every Spec 37 rotor is precision