Ships within 48 hours · Estimated delivery Sep 14 - Sep 19
All Pro Series head bolts have a reduced wrenching hex or 12-point head and wide area flange to eliminate the need for valve train removal for cylinder head retorquing and permits the use of larger diameter valve springs
ECE type approval is valid for cars equipped with an OPF (Otto Particulate Filter)
Product Box Height 10
The Akrapovic carbon fibre rear diffuser is available as an optional component in either high-gloss or matte finish
Blazer 1969-1982
ARP 623-1750 SAE Bolt Kit 3/8-16 x 1.750 hex SS bolts ymm_42 All Pro Series head boltsSpecifications Socket Size(s) 3 8 hex UHL 1. 750 Thread Length 1. 000 Grip Length 0. 750 Thread Diameter Pitch 3 8 16 Grip Diameter 3 8 Wrenching (reduced) 3 8 Head Height (reduced) 0. 300 Collar Diameter (reduced) 0. 620