80004 - 8" 396/427 BB Chevy Damper (Int.)

Big Block Chevy Harmonic Damper, This is our standard 8" damper for 396/427 (or any internally balanced big block Chevy engine) and is one of the few dampers we make that doe not match the original O.E. size which was 7 on these engines. Using the diameter allows interchangeability with our 454/502 dampers.