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Looking for aftermarket parts to modify or upgrade your 1978 Chevrolet K20 with valve locks? At Tunersports.com we carry a huge selection of the top name brand performance valve lock parts and accessories.
 IN STOCK - DROPSHIPS 603-16Includes 16 Pairs of hardened Steel Street Locks: 1 Groove, 7°... COMP Cams Valve Locks 3/8in Single Groove 1976-1978 Chevrolet K20 Cheyenne / Custom Deluxe / Scottsdale / Silverado $74.38 |
 IN STOCK - DROPSHIPS 612-16retainer.... COMP Cams Super Valve Locks 3/8in 1976-1978 Chevrolet K20 Cheyenne / Custom Deluxe / Scottsdale / Silverado $63.95 |
 IN STOCK - DROPSHIPS 616-16retainer.... COMP Cams Super Valve Locks +.050 3/8in 1976-1978 Chevrolet K20 Cheyenne / Custom Deluxe / Scottsdale / Silverado $65.20 |
 IN STOCK - DROPSHIPS 603-1Includes 1 Pair of hardened Steel Street Locks: 1 Groove, 7°... COMP Cams Valve Lock 3/8in Single Groove 1976-1978 Chevrolet K20 Cheyenne / Custom Deluxe / Scottsdale / Silverado $30.07 |
 IN STOCK - DROPSHIPS 612-1retainer.... COMP Cams Super Valve Lock 3/8in 1976-1978 Chevrolet K20 Cheyenne / Custom Deluxe / Scottsdale / Silverado $28.60 |
 IN STOCK - DROPSHIPS 613-1This Steel Super Lock without a lash cap recess features a 10°... COMP Cams Super Valve Lock 11/32in Non R 1975-1980 Chevrolet K20 Custom Deluxe 1975-1981 Chevrolet K20 Cheyenne 1975-1983 Chevrolet K20 Silverado 1975-1986 Chevrolet K20 Scottsdale $28.60 |
 IN STOCK - DROPSHIPS 613-100Ideal for use in race applications, our wider 10 degree angle locks better distribute increasing spring loads over the retainer more than typicaly 7 degree locks.... COMP Cams Super Valve Locks Eb 11/32in N - Set of 100 1975-1980 Chevrolet K20 Custom Deluxe 1975-1981 Chevrolet K20 Cheyenne 1975-1983 Chevrolet K20 Silverado 1975-1986 Chevrolet K20 Scottsdale $203.46 |
 OUT OF STOCK 616-1retainer.... COMP Cams Super Valve Lock +.050 3/8in 1976-1978 Chevrolet K20 Cheyenne / Custom Deluxe / Scottsdale / Silverado $28.60 |