Wilwood Spec-37 HD 48 Curved Vane Rotor - LH - 11.75" Diameter - 1.25" Width - 8 x 7.00" Bolt Circle 57800BK C2047 to provide a solid

C2047 to provide a solid mounting point

Three 3/4 in Holes

Technical Specs: Width At Top: 26"

The valve covers retain Holley's signature integrated angled coil mounts

Wilwood Spec-37 HD 48 Curved Vane Rotor - LH - 11.75" Diameter - 1.25" Width - 8 x 7.00" Bolt Circle 57800BK C2047 to provide a solidWilwood's HD 48 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