Cylinder Head Bolt Kit for Pontiac 400-455 cid with Edelbrock Performer & RPM heads 60579, 60599 (mf

Cylinder Head Bolt Kit for Pontiac 400-455 cid with Edelbrock Performer & RPM heads 60579, 60599 (mfHigh 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. Material: 8740 Chrome Moly Finish: Black Material 2: Finish 2: Origin: USA

so that’s why ARP came up with these super tough bolts

It is for good reason that virtually every top professional enginebuilder relies on ARP Pro Series head studs for their all-out competitionpowerplants

and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others

ARP has you covered with our 180

That’s whythe fastener experts at ARP have developed special bolts that are far superior to OEM hardware

Far superior to any other main bolts available for use in competition engines

Material: 8740 Chrome Moly

ARP’s Pro Series rocker arm studs are made of premium grade 8740 chrome moly steel and heat-treated to a tensile strength of 190

Universal - Bellhousing to Manual Trans Stud Kits: These premium grade bolt and stud kits are engineered to properly engage the engineblock threads and resist loosening

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

If there is a permanent increase of

Both are available in black oxide finished chrome moly steel or polished ARP Stainless