When fabricating a custom exhaust for your next Born Free Shovelhead Chopper you will definitely need a set of these

coped steel bungs are 3/4" diameter and are drilled and tapped with 5/16"-18 thread

These tanks feature a single 1/4 inch NPT petcock fitting at the lowest point of the tank for maximum miles on the road

This manifold adapter can be used to mount a late model CV carb or a Mikuni HSR 42 MM carb on Evolution Big Twin

#2675-20 Footboard Mounting Kit 1936-1954 Harley-Davidson Davidson Big Twin - Parkerized Bung Type_Full Radius When fabricating a custom exhaustParkerized studs, washers and nuts used to mount footboards on 1936 1954 Harley Davidson Big Twins. Made in Ohio, USA.