5-Pack Bolt Kit, 12-Point Head S/S BigBoost It features a double O-ring

It features a double O-ring grooved sleeve offering absolute sealing with maximum flexibility

Replacement Quick Release V-Band Clamp – AF59-1500-01

The ability to interchange for various spring pressures are great for any application to suit a range of boost pressures

Available to suit 4150/4500 style carburettors such as Holley

5-Pack Bolt Kit, 12-Point Head S/S BigBoost It features a double O-ring5 16" UNC x 1. 500" UHL With 3 8" Socket Head Part Number : AR612 1500 To compliment ARP "bulk" 5 pack chrome moly and stainless steel fasteners we have assembled matching groups of nuts. They, too, come in convenient 5 pack skin cards. Take your pick from stainless steel and black oxide finished standard nuts or stainless steel Nyloc and cad plated Nyloc self locking nuts.