Mr. Gasket Sure-Lock Rocker Arm Nuts - For Stock Rocker Arms - Fits SB Chevy 283-400 , Pontiac V-8 , Ford 289/302/351 - Gold Tone Finished Nuts Have 3/8" Stud and .603" Shank O.D. CHOP22X 1-1/8-IN - 21 Spl

1-1/8-IN - 21 Spl

Brings out connections to a waterproof 26 pin connector similiar to ones used on EFI units

1987-1987 GMC R1500

In the past it was always a hassle to repair the Rear End Threads

at 60psi base pressure

Mr. Gasket Sure-Lock Rocker Arm Nuts - For Stock Rocker Arms - Fits SB Chevy 283-400 , Pontiac V-8 , Ford 289/302/351 - Gold Tone Finished Nuts Have 3/8" Stud and .603" Shank O.D. CHOP22X 1-1/8-IN - 21 SplHigh quality, heat treated steel nuts are plated for durability and will keep rocker arms positively locked to maintain precise valve train adjustments. Its include 16 rocker arm nuts with socket head set screws and one hex key wrench. Vehicle Applications: 1964 1973 Chevrolet Chevelle 1961 1974 Chevrolet C10 Pickup 1989 1989 Chevrolet R2500 1961 1974 Chevrolet K20 Pickup 1987 1988 Chevrolet V30 1958 1972 Chevrolet Biscayne 1969 1972 Chevrolet