Cylinder Head Bolt Kit for Chevrolet 90° V6 hi-port 3/8˝ holes

Cylinder Head Bolt Kit for Chevrolet 90° V6 hi-port 3/8˝ holesAll 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 threads are rolled after heat-treating which gives them about 2000% better fatigue strength than most main bolts that are threaded prior to heat-treating

Like most high strength

enabling the sleeve to float

Premium quality 8740 and ARP2000® head stud kits are availablefor most domestic and import applications

and 1 inch sizes

Applications include

ARP uses a unique manufacturingprocess where the alignment sleeve is roll formed onto the shaft(not welded or pinned)

ARP has introduced a line of premium quality weld-in bungs

They’re made from 8740 chrome moly steel

low-profile design

There are many important reasons to use ARP main stud kits

ARP main bolts are designed to meet the exacting standards and demands of professional engine builders