ARP Head Stud Kit High Performance 8740 Series Hex Head

It is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there's not a better stud setup on the market today. For openers, ARP uses a premium grade 8740 alloy that is rated far superior to aircraft quality. Each stud is placed vertically in special racks and precisely heat-treated to 200,000 psi. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.

Following heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. This procedure involves about ten very slight cuts and results in an exceptionally straight part. It's important to note that lesser quality studs are not even centerless ground the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned something that won't happen with inferior quality head studs

Vehicle Fitments:

Year	Make	Model	Submodel
1980 - 1988	Buick	Century	Base
1980 - 1984	Buick	Century	Estate
1985 - 1988	Buick	Century	Estate Wagon
1978 - 1988	Buick	Century	Limited, Custom
1984	Buick	Century	Olympia Limited
1978 - 1979	Buick	Century	Special
1978 - 1981	Buick	Century	Sport
1986	Buick	Century	SS
1984 - 1986	Buick	Century	T-Type
1985 - 1987	Buick	Electra	Park Avenue, T-Type, Estate Wagon, Limited
1977 - 1988	Buick	LeSabre	Base, Custom
1985	Buick	LeSabre	Collector's Edition
1977	Buick	LeSabre	Custom Sport
1985 - 1988	Buick	LeSabre	Estate Wagon
1979 - 1988	Buick	LeSabre	Limited
1982	Buick	LeSabre	Limited Edition F/E
1978 - 1981	Buick	LeSabre	Sport
1987	Buick	LeSabre	T-Type
1982 - 1983	Buick	Regal	Estate Wagon
1987	Buick	Regal	GNX
1984 - 1987	Buick	Regal	Grand National
1982	Buick	Regal	Limited Turbo
1978 - 1987	Buick	Regal	Limited, Base
1978 - 1982	Buick	Regal	Sport
1983 - 1986	Buick	Regal	T-Type
1987	Buick	Riviera	Luxury, T-Type
1978 - 1980	Buick	Skyhawk	Base, S
1980	Buick	Skyhawk	Designers' Accent Edition
1979 - 1980	Buick	Skyhawk	Road Hawk
1978 - 1979	Buick	Skylark	S, Base, Custom
1978	Buick	Skylark	Sport