ARP 656-2500 SAE Bolt Kit 1/2-13 x 2.500 12pt SS bolts ymm_48 Fits Following Engines: Boss 351

Fits Following Engines: Boss 351 CID Ford Small Block V8

Description ARD FL210003 Flange Exhaust System T4

which is developed for use on closed tracks only

The Akrapovič Sound Kit is an optional electronic upgrade designed to give drivers full control over the acoustic output of compatible Akrapovič exhaust systems directly from the vehicle’s cabin

ARP 656-2500 SAE Bolt Kit 1/2-13 x 2.500 12pt SS bolts ymm_48 Fits Following Engines: Boss 351Specifications Socket Size(s) 9 16 12pt UHL 2. 500 Thread Length 1. 250 Grip Length 1. 250 Thread Diameter Pitch 1 2 13 Grip Diameter 1 2 Wrenching 9 16 Head Height 0. 450 Collar Diameter 0. 850