SFI 18.1 Harmonic Damper for LS1, LS2, LS3, LS6 Corvette, Pontiac G8 & Cadillac CTS-V w/Crank Bolt. Features 6 Rib drive & 10% Underdrive Pulley.
This damper comes standard with 3/16" Keyway for use with aftermarket crankshafts.
