Cylinder Head Bolt Kit for Ford 302 Boss

Cylinder Head Bolt Kit for Ford 302 BossHIGH 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,

The studs are sold in 4 or 5 packs and are cadmium plated for extra durability

which gives themabout 2000% (that’s twenty times) better fatigue strength thanthose studs that are threaded prior to heat-treat (a very commonindustry practice)

Available inblack oxide finished chrome moly or rust-proofstainless steel

This eliminates the thread “movement” common to others

They’re forged from premium grade 8740 chrome moly steel and are heat-treated to a nominal rating of 190

Material: Inconel

ARP rocker studs are concentric within

And here’s ARP’s contribution to the solution

These features combine to enable ARP shafts to handle the added torque requirements of increased capacity oil pumps or heavy viscosity lubricants

It has approximately 200% the fatigue life of 8740 chrome moly steel and has a tensile strength of 220

All Pro Series head bolts have areduced wrenching hex or 12-point head and wide area flange to permit the use of larger diameter valve springs and eliminate the need for valve train removal during cylinder head retorquing

Our kits come in 8470 or polished ARP Stainless and cover spacers up to 3