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ARP Big-Block Chevy main stud kit for four-bolt aluminum blocks. This kit supplies main studs intended to retain the crank main caps on big-block Chevy applications with four-bolt mains and an aluminum block. It’s a direct-fit fastener solution used during engine assembly or rebuilds where stud-style main attachment is required for Big-Block Chevy aluminum blocks.
ARP BB Chevy 4-bolt w/alum block main stud kit
