Ferrea Competition Plus Exhaust Valve - 1.600" Head - 11/32" Valve Stem - 5.010" Long - Stainless - Small Block Chevy HYPLSML11M61FIA Bolts have a 7/16"-20 internal

Bolts have a 7/16"-20 internal thread on one end for use with bolt-on and swiveler spring cups

Used by many of the best Super class racers in the world

3specification

Adapter fits most helmet hoses with 1-1/4" ends and has a 2-3/4" O

Ferrea Competition Plus Exhaust Valve - 1.600" Head - 11/32" Valve Stem - 5.010" Long - Stainless - Small Block Chevy HYPLSML11M61FIA Bolts have a 7/16"-20 internalProduct Description: Exhaust Valve Competition Plus 1. 600 in Head 11 32 in Valve Stem 5. 010 in Long Stainless Small Block Chevy Sold Individually 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