Proform Engine Rocker Arm and Shaft Assembly 66864 1992-gmc-g2500-esi2644802 1990-1991 Chevrolet Corsica LT 1993

1990-1991 Chevrolet Corsica LT 1993 Chevrolet Corvette 40th Anniversary Edition 1992-1996 Chevrolet Corvette Base 1996 Chevrolet Corvette Collector's Edition 1996 Chevrolet Corvette Grand Sport 1995 Chevrolet Corvette Indianapolis 500 Pace Car 1992-1995 Chevrolet Corvette ZR-1 1981-1987 Chevrolet El Camino Base 1981-1986 Chevrolet El Camino Conquista 1981 Chevrolet El Camino Royal Knight 1981-1987 Chevrolet El Camino SS 1996-1999 Chevrolet Express 1500 Base 1996-1999 Chevrolet Express 1500 LS 1996-1999 Chevrolet Express 2500 Base 1998 Chevrolet Express 3500 Base 1997-1998 Chevrolet Express 3500 LS 1985-1995 Chevrolet G10 Beauville 1986-1987 Chevrolet G10 Bonaventure 1985-1995 Chevrolet G10 Chevy Van 1985-1995 Chevrolet G10 Sportvan 1985-1995 Chevrolet G20 Beauville 1985-1995 Chevrolet G20 Chevy Van 1985-1995 Chevrolet G20 Sportvan 1985-1993 Chevrolet G30 Beauville 1985-1996 Chevrolet G30 Chevy Van 1985-1995 Chevrolet G30 Hi-Cube 1981-1985 Chevrolet Impala Base 1981-1982 Chevrolet Impala Estate 1994-1996 Chevrolet Impala SS 1985-1986 Chevrolet K10 Custom 1985-1986 Chevrolet K10 Scottsdale 1985-1986 Chevrolet K10 Silverado 1994-1997 Chevrolet K1500 Base 1988-1998 Chevrolet K1500 Cheyenne 1999 Chevrolet K1500 LS 1988-1992 Chevrolet K1500 Scottsdale 1988-1998 Chevrolet K1500 Silverado 1991 Chevrolet K1500 Sport 1990-1998 Chevrolet K1500 WT 1992-1999 Chevrolet K1500 Suburban Base 1995-1999 Chevrolet K1500 Suburban LS 1995-1997

Base Outside Diameter 6

CORSA's Most Aggressive Exhaust Note

2011-2012 Ford F-450 Super Duty King Ranch 6

Proform Engine Rocker Arm and Shaft Assembly 66864 1992-gmc-g2500-esi2644802 1990-1991 Chevrolet Corsica LT 1993Take your Buick valve train to the next level of performance with a friction reducing roller rocker system. This shaft mounted roller rocker system will fit standard stage 1 and 2 cylinder heads, and is designed for 1. 65 ratio. Please note that the push rod hole may require additional clearance. Premium Race Series rockers include 16 billet aluminum roller rockers with adjusters, two shafts, and all the necessary spacers and mounting hardware.