Cylinder Head Bolt Kit for Chrysler 426 factory Hemi & Mopar 426-472-528 Hemi Crate Motor with facto

Cylinder Head Bolt Kit for Chrysler 426 factory Hemi & Mopar 426-472-528 Hemi Crate Motor with factoAll 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

the compact 12-point inut lets you easily slip a socket close to the pipe

They’re application-specific

A premium grade 8740 alloy chrome moly steel is used to manufacture ARP High Performance connecting rod bolts

each stud is centerless ground to makeit as close to perfectly concentric as possible

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

000 psi (which is 15%stronger than Grade 8) and kits come complete with hardened parallel-ground washers

Kits come complete with flat washers

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

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

000 psi for the ARP2000® material

Stud kits come complete with nuts and washers

The popular High Performance Series is rated at 180