The Wilwood GT Series flared bell rotor hat is a precision-machined aluminum hat with threaded rotor-mount holes designed for large-diameter rotors and larger bolt circles. Flared bell hats are intended for rotor mount bolt circles around 8.38" and larger and accommodate offsets in the higher range for rotors 12.19" and up, delivering a lightweight yet strong mounting solution when used with Wilwood rotor hardware kits.
Wilwood Hat-BB Front 1.75in Offset 5 x 4.50/4.75 - 12 on 8.75in