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

COMP Cams Rocker Arms 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. Rocker Arms, CB 1.7 7/16 Ultra Pro Mag COMP Cams Ultra Pro Magnum Roller Rocker Arms, 1.7 Ratio, 7/16" Stud Diameter for Big Block Chevrolet, Set of 12 COMP Cams Rocker Arms CB 1.7 7/16 Ultra

Vehicle Fitments:

Year	Make	Model	Submodel
1970 - 1975	Chevrolet	Bel Air	Base
1986	Chevrolet	C20	Base
1975 - 1986	Chevrolet	C20	Cheyenne, Silverado, Scottsdale
1981 - 1986	Chevrolet	C20	Custom
1975 - 1980	Chevrolet	C20	Custom Deluxe
1981	Chevrolet	C20	Deluxe
1970 - 1974	Chevrolet	C20 Suburban	Base
1981 - 1986	Chevrolet	C20 Suburban	Custom
1975 - 1980	Chevrolet	C20 Suburban	Custom Deluxe
1981	Chevrolet	C20 Suburban	Deluxe
1975 - 1986	Chevrolet	C20 Suburban	Scottsdale, Silverado
1973 - 1974	Chevrolet	C30 Pickup	Base
1967 - 1969	Chevrolet	Camaro	RS, SS, Base, Z28
1966 - 1969	Chevrolet	Caprice	Base
1970 - 1971	Chevrolet	K30 Pickup	Base
1973 - 1975	Chevrolet	Laguna	Base
1973	Chevrolet	Laguna	Estate
1975	Chevrolet	Laguna	S3
1974	Chevrolet	Laguna	Type S-3
1989	Chevrolet	V3500	Silverado, Cheyenne, Scottsdale
1968 - 1969	GMC	C15/C1500 Pickup	Base
1975 - 1978	GMC	C25	High Sierra, Base, Sierra Grande, Sierra Classic
1968	GMC	K25/K2500 Suburban	Base
1971 - 1975	GMC	Sprint	Base
1972 - 1974	GMC	Sprint	Custom
1975	GMC	Sprint	SP, High Sierra, Classic