COMP Cams Rocker Arms CB 1.7 7/16 Ultra 1620-12

The Ultra Pro Magnum Roller Rocker Arms for Big Block Chevy 396-454 applications take stud mount rocker performance, stability and value to a whole new level. These rocker arms feature a 7/16" stud diameter and 1.7 ratio. The 8650 chromemoly material and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance. A unique black oxide exterior finish helps prevent corrosion and increases durability. Featuring oversized trunions, precision-sorted needle bearings and hardened roller tips for the ultimate in performance and dependability. Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues. COMP Cams Ultra Pro Magnum Roller Rocker Arms, 1.7 Ratio, 7/16" Stud Diameter for Big Block Chevrolet, Set of 12 For Big Block Chevy applications, 1.7 Ratio, 7/16" Studs; Investment cast 8650 chromemoly body and arched, web-like design deliver increased strength and rigidity while reducing moment of inertia; Unique black oxide exterior finish helps prevent corrosion, thus increasing durability; Optimized retainer and valve spring clearances allow use of most diameter springs, retainers and +.050" locks without clearance or fitment issues; Feature oversized trunions, precision sorted needle bearings and hardened roller tips Fits, Fitments 1966 Chevrolet Caprice Base 1967 Chevrolet Camaro Base 1967 Chevrolet Camaro RS 1967 Chevrolet Camaro SS 1967 Chevrolet Caprice Base 1968 Chevrolet Camaro SS 1968 Chevrolet Caprice Base 1968 GMC C15/C1500 Pickup Base 1968 GMC K25/K2500 Suburban Base 1969 Chevrolet Camaro SS 1969 Chevrolet Caprice Base 1969 GMC C15/C1500 Pickup Base 1970 Chevrolet Bel Air Base 1970 Chevrolet C20 Suburban Base 1970 Chevrolet K30 Pickup Base 1971 Chevrolet Bel Air Base 1971 Chevrolet C20 Suburban Base 1971 Chevrolet K30 Pickup Base 1971 GMC Sprint Base 1972 Chevrolet Bel Air Base 1972 Chevrolet C20 Suburban Base 1972 GMC Sprint Base 1972 GMC Sprint Custom 1973 Chevrolet Bel Air Base 1973 Chevrolet C20 Suburban Base 1973 Chevrolet C30 Pickup Base 1973 Chevrolet Laguna Base 1973 Chevrolet Laguna Estate 1974 Chevrolet Bel Air Base 1974 Chevrolet C20 Suburban Base 1974 Chevrolet C30 Pickup Base 1974 Chevrolet Laguna Base 1974 Chevrolet Laguna Type S-3 1974 GMC Sprint Base 1974 GMC Sprint Custom 1975 Chevrolet Bel Air Base 1975 Chevrolet C20 Cheyenne 1975 Chevrolet C20 Custom Deluxe 1975 Chevrolet C20 Scottsdale 1975 Chevrolet C20 Silverado 1975 Chevrolet C20 Suburban Custom Deluxe 1975 Chevrolet C20 Suburban Scottsdale 1975 Chevrolet C20 Suburban Silverado 1975 Chevrolet Laguna Base 1975 Chevrolet Laguna S3 1975 GMC C25 Base 1975 GMC C25 High Sierra 1975 GMC C25 Sierra Classic 1975 GMC C25 Sierra Grande 1975 GMC Sprint Base 1975 GMC Sprint Classic 1975 GMC Sprint High Sierra 1975 GMC Sprint SP 1976 Chevrolet C20 Cheyenne 1976 Chevrolet C20 Custom Deluxe 1976 Chevrolet C20 Scottsdale 1976 Chevrolet C20 Silverado 1976 Chevrolet C20 Suburban Custom Deluxe 1976 Chevrolet C20 Suburban Scottsdale 1976 Chevrolet C20 Suburban Silverado 1976 GMC C25 Base 1976 GMC C25 High Sierra 1976 GMC C25 Sierra Classic 1976 GMC C25 Sierra Grande 1977 Chevrolet C20 Cheyenne 1977 Chevrolet C20 Custom Deluxe 1977 Chevrolet C20 Scottsdale 1977 Chevrolet C20 Silverado 1977 Chevrolet C20 Suburban Custom Deluxe 1977 Chevrolet C20 Suburban Scottsdale 1977 Chevrolet C20 Suburban Silverado 1977 GMC C25 Base 1977 GMC C25 High Sierra 1977 GMC C25 Sierra Classic 1977 GMC C25 Sierra Grande 1978 Chevrolet C20 Cheyenne 1978 Chevrolet C20 Custom Deluxe 1978 Chevrolet C20 Scottsdale 1978 Chevrolet C20 Silverado 1978 Chevrolet C20 Suburban Custom Deluxe 1978 Chevrolet C20 Suburban Scottsdale 1978 GMC C25 Base 1978 GMC C25 High Sierra 1978 GMC C25 Sierra Classic 1978 GMC C25 Sierra Grande 1979 Chevrolet C20 Cheyenne 1979 Chevrolet C20 Custom Deluxe 1979 Chevrolet C20 Scottsdale 1979 Chevrolet C20 Silverado 1979 Chevrolet C20 Suburban Custom Deluxe 1979 Chevrolet C20 Suburban Scottsdale 1979 Chevrolet C20 Suburban Silverado 1980 Chevrolet C20 Cheyenne 1980 Chevrolet C20 Custom Deluxe 1980 Chevrolet C20 Scottsdale 1980 Chevrolet C20 Silverado 1980 Chevrolet C20 Suburban Custom Deluxe 1980 Chevrolet C20 Suburban Scottsdale 1980 Chevrolet C20 Suburban Silverado 1981 Chevrolet C20 Cheyenne 1981 Chevrolet C20 Custom 1981 Chevrolet C20 Deluxe 1981 Chevrolet C20 Scottsdale 1981 Chevrolet C20 Silverado 1981 Chevrolet C20 Suburban Custom 1981 Chevrolet C20 Suburban Deluxe 1982 Chevrolet C20 Custom 1982 Chevrolet C20 Scottsdale 1982 Chevrolet C20 Silverado 1982 Chevrolet C20 Suburban Custom 1982 Chevrolet C20 Suburban Scottsdale 1982 Chevrolet C20 Suburban Silverado 1983 Chevrolet C20 Custom 1983 Chevrolet C20 Scottsdale 1983 Chevrolet C20 Silverado 1983 Chevrolet C20 Suburban Custom 1983 Chevrolet C20 Suburban Silverado 1984 Chevrolet C20 Custom 1984 Chevrolet C20 Scottsdale 1984 Chevrolet C20 Silverado 1984 Chevrolet C20 Suburban Custom 1984 Chevrolet C20 Suburban Scottsdale 1984 Chevrolet C20 Suburban Silverado 1985 Chevrolet C20 Custom 1985 Chevrolet C20 Scottsdale 1985 Chevrolet C20 Silverado 1985 Chevrolet C20 Suburban Custom 1985 Chevrolet C20 Suburban Scottsdale 1985 Chevrolet C20 Suburban Silverado 1986 Chevrolet C20 Custom 1986 Chevrolet C20 Scottsdale 1986 Chevrolet C20 Silverado 1986 Chevrolet C20 Suburban Custom 1986 Chevrolet C20 Suburban Scottsdale 1986 Chevrolet C20 Suburban Silverado 1989 Chevrolet V3500 Cheyenne 1989 Chevrolet V3500 Scottsdale 1989 Chevrolet V3500 Silverado