ARP Rocker Arm Studs Pro Series

If you have ever installed a rocker stud into a cylinder head and watched it wobble as it screwed in you knew from the beginning that the rocker geometry was going to be inconsistent all over the place. ARP rocker studs are concentric within .005 T.I.R. thread pitch to thread pitch. They run-in straight and true. Lengths are exact designed to provide positive seating every time. An extra-large radius base offers greater resistance to flex. Available in both High Performance and Pro Series models.

NOTE: Not to be used with OEM-style, self-locking nuts. To be used with ARP's patented Perma-Loc adjusters.

HIGH PERFORMANCE SERIES
Made of 8740 chrome moly forgings and heat-treated to 180,000 psi. Excellent for E.T. Bracket Racing, limited rule oval trackcompetition and street use. Tip ground flush for optimum adjuster seatin.

PRO SERIES
Designed for competition applications, ARP's Pro Series rocker arm studs are made of premium grade 8740 chrome moly steel and heat-treated to a tensile strength of 200,000 psi.

IMPORTANT TECH NOTE
It is highly advisable to determine what the optimum rocker arm stud length is for your particular application. This is especially true when long pushrods and valves are employed you should raise the installed height of the rocker arm to compensate for the longer-than-stock components.

Vehicle Fitments:

Year	Make	Model	Submodel
1965 - 1975	Chevrolet	Bel Air	Base
1965 - 1972	Chevrolet	Biscayne	Base
1973	Chevrolet	Blazer	Base
1972	Chevrolet	Brookwood	Base
1968 - 1974	Chevrolet	C10 Pickup	Base
1968 - 1974	Chevrolet	C10 Suburban	Base
1975	Chevrolet	C10 Suburban	Silverado, Custom Deluxe, Scottsdale
1990 - 1991	Chevrolet	C1500	Base
1990 - 1993	Chevrolet	C1500	Cheyenne, 454 SS, Silverado, WT
1990 - 1992	Chevrolet	C1500	Scottsdale
1968 - 1974	Chevrolet	C20 Pickup	Base
1968 - 1974	Chevrolet	C20 Suburban	Base
1975	Chevrolet	C20 Suburban	Scottsdale, Custom Deluxe, Silverado
1993	Chevrolet	C2500	Custom, 400 SS
1991 - 1992	Chevrolet	C2500	Scottsdale
1991 - 1995	Chevrolet	C2500	Silverado, Cheyenne, Base
1994 - 1995	Chevrolet	C2500	WT
1992 - 1995	Chevrolet	C2500 Suburban	Base
1995	Chevrolet	C2500 Suburban	LS, LT
1992 - 1994	Chevrolet	C2500 Suburban	Silverado
1968 - 1974	Chevrolet	C30 Pickup	Base
1994 - 1995	Chevrolet	C3500	Base
1988 - 1992	Chevrolet	C3500	Scottsdale
1988 - 1995	Chevrolet	C3500	Silverado, Cheyenne
1967 - 1972	Chevrolet	Camaro	RS, SS, Base, Z28
1966 - 1974	Chevrolet	Caprice	Base
1973 - 1975	Chevrolet	Caprice	Classic
1973 - 1974	Chevrolet	Caprice	Estate
1975	Chevrolet	Caprice	Estate Wagon, Classic Sport
1967 - 1968	Chevrolet	Chevelle	300
1967 - 1969	Chevrolet	Chevelle	300 Deluxe
1967 - 1972	Chevrolet	Chevelle	Concours
1966 - 1973	Chevrolet	Chevelle	Deluxe
1969 - 1972	Chevrolet	Chevelle	Greenbrier, Concours Estate
1968 - 1972	Chevrolet	Chevelle	Nomad, Malibu
1966 - 1972	Chevrolet	Chevelle	SS, Base
1968	Chevrolet	Chevy II	Nova
1973 - 1974	Chevrolet	Corvette	Base
1966 - 1975	Chevrolet	El Camino	Base
1975	Chevrolet	El Camino	Classic
1968 - 1974	Chevrolet	El Camino	Custom
1968 - 1975	Chevrolet	El Camino	SS
1973 - 1974	Chevrolet	G10 Van	Sportvan, Base
1973 - 1974	Chevrolet	G20 Van	Sportvan, Base
1973 - 1974	Chevrolet	G30 Van	Sportvan, Base
1965 - 1975	Chevrolet	Impala	Base
1975	Chevrolet	Impala	Sport, Custom
1965 - 1967	Chevrolet	Impala	SS
1968 - 1974	Chevrolet	K10 Pickup	Base
1968 - 1972	Chevrolet	K10 Suburban	Base
1968 - 1974	Chevrolet	K20 Pickup	Base
1973	Chevrolet	K20 Suburban	Base
1991 - 1995	Chevrolet	K2500	Cheyenne, Silverado
1991 - 1992	Chevrolet	K2500	Scottsdale
1994 - 1995	Chevrolet	K2500	WT, Base
1992 - 1995	Chevrolet	K2500 Suburban	Base
1995	Chevrolet	K2500 Suburban	LS, LT
1992 - 1994	Chevrolet	K2500 Suburban	Silverado
1968 - 1974	Chevrolet	K30 Pickup	Base
1994	Chevrolet	K3500	Base
1988 - 1992	Chevrolet	K3500	Scottsdale
1988 - 1994	Chevrolet	K3500	Silverado, Cheyenne