ARP Rocker Arm Studs High Performance 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
1992 - 1995	Chevrolet	Astro	CS, CL
1996 - 2005	Chevrolet	Astro	LS
1992 - 2005	Chevrolet	Astro	LT, Base
1995 - 2005	Chevrolet	Blazer	Base
1995 - 1997	Chevrolet	Blazer	Deluxe
1996 - 2004	Chevrolet	Blazer	LS
1995 - 2002	Chevrolet	Blazer	LT
2002	Chevrolet	Blazer	LTZ
1999 - 2001	Chevrolet	Blazer	Trailblazer
2001 - 2005	Chevrolet	Blazer	Xtreme
2003 - 2005	Chevrolet	Blazer	ZR2
1996 - 1997	Chevrolet	C1500	Base
1996 - 1998	Chevrolet	C1500	WT, Silverado, Cheyenne
1996 - 2014	Chevrolet	Express 1500	Base, LS
2001 - 2014	Chevrolet	Express 1500	LT
1996 - 2005	Chevrolet	Express 2500	Base, LS
1996 - 1997	Chevrolet	K1500	Base
1996 - 1998	Chevrolet	K1500	Silverado, Cheyenne, WT
1996 - 1999	Chevrolet	P30	Base
1994 - 2003	Chevrolet	S10	Base, ZR2
1994 - 2004	Chevrolet	S10	LS
1994 - 1998	Chevrolet	S10	SS
1999 - 2003	Chevrolet	S10	Xtreme
2002 - 2004	Chevrolet	S10	ZR5
1992 - 1994	Chevrolet	S10 Blazer	Base, Tahoe, Tahoe LT
1994	Chevrolet	S10 Blazer	LT
1992	Chevrolet	S10 Blazer	Sport
2002	Chevrolet	Silverado 1500	Custom
2004 - 2013	Chevrolet	Silverado 1500	Hybrid
1999 - 2013	Chevrolet	Silverado 1500	LT, Base, LS
2007 - 2013	Chevrolet	Silverado 1500	LTZ
2003 - 2006	Chevrolet	Silverado 1500	SS
2002 - 2013	Chevrolet	Silverado 1500	WT
2010 - 2013	Chevrolet	Silverado 1500	XFE
2004	Chevrolet	Silverado 1500	Z71
2007	Chevrolet	Silverado 1500 Classic	LS, LT, Hybrid, SS, WT