ARP 234-4316 Head Stud Kit for CHEVROLET Gen III (2003 & earlier). 4 short. 16 long. 8740. 12pt ymm_19 9/16 hex NOTE: 1987 &

9/16 hex NOTE: 1987 & newer EFI engines

500˝ Thread Size 3/8˝ washers included

388˝ 6) Socket Size 7/16 12pt 7) Collar Diameter 0

Blazer 1969-1994

ARP 234-4316 Head Stud Kit for CHEVROLET Gen III (2003 & earlier). 4 short. 16 long. 8740. 12pt ymm_19 9/16 hex NOTE: 1987 &It 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 stud 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 complete heat