high-quality 9:1 compression pistons

The included bolts are 3/8"-16

and a standard tab at the rear

This air cleaner features a hand spun polished aluminum cover with a high quality element for high flow as well as superior protection from dust and dirt

Chrome plated allen screws fit all 1979-1991 FX

Builders Box Custom Wiring Harness Kit - Motorcycles With Points And After Market Electronic Ignitions Length_.990" high-quality 9:1 compression pistonsThe Builder's Box comes with nearly everything needed to wire up your ground up build or fully rewire your existing chopper. The kit is designed to work on all bikes with points and all after market electronic ignitions (Ex: Dynatech, Ultima, Compu Fire, Rawhide) just to name a few. These work with all kick only bikes as well as late model electric start (starters from mid 80s and up). All cloth wire, terminals, mounts, breakers, switches, and zip