ARP 627-4000 SAE Bolt Kit 1/2-13 x 4.000 12pt black oxide bolts ymm_47 Chevelle 1966-1973

Chevelle 1966-1973

This product is expertly handcrafted using race-proven carbon fibre

this link pipe set conveys pure racing emotion and great feedback at high revs

Superior material grain flow because of patented Wave-Loc surface design as compared to knurled bolts that have sharp edges and “built-in” stress risers

Fitting kit for mounting the optional downpipes to vehicles with engine number ≤ 5074

ARP 627-4000 SAE Bolt Kit 1/2-13 x 4.000 12pt black oxide bolts ymm_47 Chevelle 1966-1973Specifications Socket Size(s) 9 16 12pt UHL 4. 000 Thread Length 1. 250 Grip Length 2. 750 Thread Diameter Pitch 1 2 13 Grip Diameter 1 2 Wrenching 9 16 Head Height 0. 450 Collar Diameter 0. 850