Suit SB Chev LS Series - Dart LS Next Block 4-Bolt Main Cap. Main Bolt Style: 4-bolt 134-5901 Chevy Stud Kit ARP Fasteners ARP134-5901

ARP MAIN BOLTS LARGE JOURNAL 4 BOLT MAIN CHEV SB 302-400CID HEX HEAD ARP134-5901 There are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed stand-off studs with serrated lock nuts to position the windage tray and lock it securely in place. The studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 200,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others