Ferrea GM LS 1.615 Exhaust Valves 54-55 3/8-16 in Base Thread

3/8-16 in Base Thread

M6049 A460 Cylinder head

This kit includes a 30" round bar for the top and a 35" flat bar for the bottom

RaceQuip's Jr

If your neck is wider than the inside diameter of the device shown

Ferrea GM LS 1.615 Exhaust Valves 54-55 3/8-16 in Base ThreadProduct Description: Exhaust Valve Competition Plus 1. 615 in Head 0. 313 in Valve Stem 5. 227 in Long Stainless GM LS Series Set of 8 Ferrea Racing Components are engineered to excellence! For decades, Ferrea Racing Components has been manufacturing hard core racing components for various types of engines in a wide range of categories worldwide. Ferrea uses the latest technological advances gained through the development of engine valve programs for