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The ARP 12-point head stud kit is specified for Olds 403 engines and supplies high-strength studs for head fastening. It’s intended as a direct hardware replacement to secure cylinder heads with increased clamping consistency compared with standard bolts. The kit targets engine builders seeking durable, correct-fit studs for reliable head retention during routine service or rebuilds.
ARP Olds 403 12pt Head Stud Kit
