ARP 134-3609 Head Bolt Kit for CHEVROLET LS Gen III LS Series small block (2003 & earlier). two lengths. 8740. hex ymm_81 Designed for durability

Designed for durability

90 Bore Family)

Trailduster 1974-1981

PB-Series 1974

No additional relay required

ARP 134-3609 Head Bolt Kit for CHEVROLET LS Gen III LS Series small block (2003 & earlier). two lengths. 8740. hex ymm_81 Designed for durabilityIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all out competition powerplants. Simply stated, theres not a better hex stud head bolt kit setup on the market today. For openers, ARP uses a premium grade 8740 alloy that is rated far superior to aircraft quality. Each stud is placed vertically in special racks and precisely heat treated to 200, 000 psi. This procedure ensures