ARP High Performance Series main bolts are rated at 180,000 psi and a popular premium replacement for OEM fasteners. Designed to meet the exacting standards and demands of professional engine builders, ARP bolts are forged from 8740 chromoly steel and feature a reduced wrenching head, large underhead radius, and rolled threads for the utmost in reliability. The threads are rolled after heat-treating which gives them about 2,000 percent better fatigue strength than most main bolts that are threaded prior to heat-treating. Hardened parallel-ground washers are included with each kit.

More From This Category

ARP Bolts, 12-Point Head, Stainless 300, Polished, 7/16 in.-20 RH Thread, 2.500 in. UHL, Set of 5

ARP Bolts, 12-Point Head, Stainless 300, Polished, 7/16 in.-20 RH Thread, 2.500 in. UHL, Set of 5

$64.93

LUCAS Non-Conductive AW ISO 22 Hydraulic Oil, 5 Gallon (18.93 litre) Pail, Each

LUCAS Non-Conductive AW ISO 22 Hydraulic Oil, 5 Gallon (18.93 litre) Pail, Each

$183.96

ARP Bolts, 8740 Chromoly, Black Oxide, Hex Head, 12mm x 1.75 Thread, 40mm UHL, Set of 5

ARP Bolts, 8740 Chromoly, Black Oxide, Hex Head, 12mm x 1.75 Thread, 40mm UHL, Set of 5

$46.05

ARP Ring Compressor, Tapered, Billet Aluminum, Black Anodized, 79.5mm Bore, Each

ARP Ring Compressor, Tapered, Billet Aluminum, Black Anodized, 79.5mm Bore, Each

$127.71