ARP 652-4500 SAE Bolt Kit 3/8-16 X 4.500 hex black oxide bolts ymm_19 Fits Following Engines: 366 CID

Fits Following Engines: 366 CID Chevy Big Block V8

750˝ UHL 2

Please turn to your Area sales manager for detailed explanation on differences in order to choose the appropriate exhaust for your car

and no remapping is needed for this configuration (the system only fits vehicles equipped with the OPF filter

1000 Series 1960-1963

ARP 652-4500 SAE Bolt Kit 3/8-16 X 4.500 hex black oxide bolts ymm_19 Fits Following Engines: 366 CIDSpecifications Socket Size(s) 3 8 hex UHL 4. 500 Thread Length 1. 000 Grip Length 3. 500 Thread Diameter Pitch 3 8 16 Grip Diameter 3 8 Wrenching (reduced) 3 8 Head Height (reduced) 0. 300 Collar Diameter (reduced) 0. 620