Cylinder Head Bolt Kit for Buick V6 with 1986-87’ block and GN1 Champion heads

Cylinder Head Bolt Kit for Buick V6 with 1986-87’ block and GN1 Champion headsAll Pro Series bolts are cold forged to ensure molecular integrity, heat treated prior to thread rolling and machining, and meet theARP ZERO defect ZERO failure quality standard. ARP Pro Series head bolt kits are application specific and designed to deliversuperior strength typically associated with competition engines. Pro Series kits are available in standard (8740) 190,000 psi tensilestrength material and proprietary (ARP2000) 220,000 psi tensile

You can choose between black oxide finished 8740 chrome moly or corrosion-resistant stainless steel

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

Flywheel and Flexplate bolts play an important role in the performance and safety of race cars and street machines alike

ARP quality delivers increasedpre-load clamping force and assures positive timing gear register

you will note that gaskets and cylinder headsliterally glide into position and are perfectly aligned – somethingthat won’t happen with inferior quality head studs

Finish: Polished

and with or without I

A hollow core serves to reduce the reciprocating mass

ARP rocker studs are concentric within

This material is heat-treated to provide a tensile strength in the 200

You also can choose between standard hex head bolts or compact 12-point fasteners

All critical shear points feature a large radius for improved reliability and maximum load carrying capacity