COMP Cams Billet Timing Set FF 9-Keyway 7122CPG Dirt King Sierra Classic 1979 - 1982

Sierra Classic 1979 - 1982 GMC C3500 Sierra Grande 1977 GMC K15 Indy Hauler 1975 - 1978 GMC K15 Sierra Grande

The NOIR Muffler was developed specifically with the diehard street car enthusiast in mind

Front-mounted Intercooler

Race Hydraulic Flat Tappet Lifters

COMP Cams Billet Timing Set FF 9-Keyway 7122CPG Dirt King Sierra Classic 1979 - 1982CCA Timing Chain Sets Engine Timing Set Induction hardened and precision machined steel billet gears for bullet proof durability; Feature 9 keyway crank sprocket for 2 degree incremental adjustability, 8 degree maximum advance retard; Pre stretched, heat treated double roller timing chain with heavy duty large pin design; Includes Torrington roller thrust bearing for reduced friction; COMP Cams Keyway Adjustable Billet Timing Sets include induction