2021 ARP Catalog

66 Red part numbers indicate new items WARNING: Cancer www.P65Warnings.ca.gov. WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov . s l California Residents MAIN BOLTS 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 profession- al 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-treat- ing 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 appli- cation-specific, rated at 190,000 psi, and designed for use in competition engines. Hardened parallel-ground washers are included with each kit. Application High Performance Pro Series 2-Bolt Main 4-Bolt Main 2-Bolt Main 4-Bolt Main BMW S1000RR Motorcycle ARP2000 - Crankcase main bolt kit (29 pcs. with sealing washers) 201-5201  l BUICK V6 Stage I 123-5201 s V6 stage II 123-5202 s 455 cid 125-5201 s CADILLAC 331-365-390 1949-62, hex 117-5001 s CHEVROLET, SMALL BLOCK Large journal - hex 134-5001 s 134-5202 s Large journal - 12 pt 234-5201 s Large journal - with 1/2” straps on front & rear caps 234-5203 s Small journal 134-5002 s Dart - SHP iron block 134-5204 s World - Motown iron block 134-5203  l CHEVROLET, BIG BLOCK 396-402-427-454 cid 135-5002 s 135-5201 s World - Merlin II & III iron blocks 135-5202  l CHEVROLET, 6-CYLINDER 90° V6 233-5201 s 90° V6 with 1/2˝ straps on front & rear caps 233-5203 s CHRYSLER 273-440 Wedge, reduced head height 12pt 140-5002 s 273-440 Wedge, reduced head height hex 140-5003 s MAIN BOLTS