COMP Cams Keyway Adjustable Billet Timing Sets include induction hardened, precision machined steel billet gears and pre-stretched, heat-treated double roller timing chains with heavy-duty large pin design. They feature a 9 keyway crank sprocket for 2? incremental adjustability with 8? maximum advance or retard. These timing sets are ideal for all street performance and race applications.This Part Fits: Year Make Model Submodel 2006-2007 Cadillac CTS V 1998-2002 Chevrolet Camaro Z28 1998-2002 Chevrolet Camaro Z28 SS 2003 Chevrolet Corvette 50th Anniversary Edition 2003 Chevrolet Corvette 50th Anniversary Edition Pace Car 1997-2007 Chevrolet Corvette Base 1998 Chevrolet Corvette Indianapolis 500 Pace Car 2001-2004 Chevrolet Corvette Z06 2005-2006 Chevrolet SSR Base 2006-2007 Chevrolet Trailblazer SS 1998-2002 Pontiac Firebird Formula 1998-2002 Pontiac Firebird Trans Am 2004-2006 Pontiac GTO Base
