PRO/RACE Pro Sport SFI 18.1 Harmonic Balancer - 7.520 in OD - Internal Balance - GM LS-Series 34261 19300905 and provide superior exhaust flow

and provide superior exhaust flow over factory manifolds to let your 351 Windsor block engine breathe better

1968-1977 Pontiac Grand Prix

1982-1991 Pontiac Firebird

1965-1967 Chevrolet C10 Panel

PRO/RACE Pro Sport SFI 18.1 Harmonic Balancer - 7.520 in OD - Internal Balance - GM LS-Series 34261 19300905 and provide superior exhaust flowProduct Description: Harmonic Balancer Pro Sport 7. 520 in OD SFI 18. 1 Iron Natural Internal Balance GM LS Series Sold Individually Founded by renowned Australian drag racer Graham Withers , Pro Race Performance has produced performance engine components for more than 35 years. Pro Race is recognized for their All Steel line of crankshaft dampers, initially offered for the Holden 308 V8, and now offers high performance racing dampers for a wide range