Wilwood GT 36 Curved Vane Spec-37 Rotor - RH - .810" Width - 12.19" Diameter - .810" Width - 8 x 7.00" Bolt Circle - .326" Hole - 9.6 lbs. FAST - Fuel Air Spark Technology Forward Mounting

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Wilwood GT 36 Curved Vane Spec-37 Rotor - RH - .810" Width - 12.19" Diameter - .810" Width - 8 x 7.00" Bolt Circle - .326" Hole - 9.6 lbs. FAST - Fuel Air Spark Technology Forward MountingWilwood's GT 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