Cylinder Head Bolt Kit for Buick V6 Stage I (1977-85)

Cylinder Head Bolt Kit for Buick V6 Stage I (1977-85)HIGH PERFORMANCE SERIESHigh Performance head bolts are available with a reduced wrenching hex or 12 point and wide area flanged head that eliminates theneed for valve train removal to facilitate cylinder head retorquing. All High Performance Series bolts are 180,000 psi (which is 15%stronger than Grade 8) and kits come complete with hardened parallel ground washers. PROFESSIONAL SERIESAll Pro Series bolts are cold forged to ensure molecular integrity,

They’re offered in a variety of heights to accommodate most any combination of carb and spacer

Studs and bolts come either black oxide chrome moly or polished ARP Stainless

reciprocating and valve train components

Kits come complete with flat washers

low-profile design

And here’s ARP’s contribution to the solution

the adjuster body is heat-treated all the way through (not just case hardened)

thread pitch to thread pitch

A true high performance washer from ARP

ARP 12-point nuts are manufactured in thick wall versions for optimum strength and rigidity and thin wall versions for applications with limited space requirements

all ARP 12-point nuts are constructed from 8740 chrome moly steel or ARP Stainless

substantially stronger than Grade 8 hardware