This ARP main stud kit is made for small-block Chevy four-bolt splayed mains, supplying aftermarket main studs intended to secure the crankshaft in high-load engine builds. The kit provides hardware tailored to four-bolt splayed-main blocks, offering an upgrade path for builders seeking stronger main fastener solutions during engine assembly or rebuilds where stud-style main retention is preferred over stock fasteners.
ARP SB Chevy 4 Bolt Splayed Main Stud Kit