Far superior to any other main bolts available for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine builders. Forged from 8740 chrome moly steel, all ARP main bolts 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 2000% better fatigue strength than most main bolts that are threaded prior to heat-treating. The popular High Performance Series is rated at 180,000 psi, and is a premium replacement for OEM fasteners. Pro Series main bolts are application-specific, rated at 190,000 psi, and designed for use in competition engines. Hardened parallel-ground washers are included with each kit.

More From This Category

ARP SB For Ford SVO 351 3/8 in. main bolt Kit

ARP SB For Ford SVO 351 3/8 in. main bolt Kit

$354.48

ARP Main Bolts, High Performance Series, 2-Bolt Main, For Ford, 429, 460, Kit

ARP Main Bolts, High Performance Series, 2-Bolt Main, For Ford, 429, 460, Kit

$149.38

ARP Main/Case Bolts, Pro Series, 2-Bolt Main, Hex Head, For Subaru, 2.0, 2.2, 2.5L, Kit

ARP Main/Case Bolts, Pro Series, 2-Bolt Main, Hex Head, For Subaru, 2.0, 2.2, 2.5L, Kit

$883.58

ARP For Porsche 996 main bolt Kit

ARP For Porsche 996 main bolt Kit

$268.94