Ferrea Exhaust Valve - 1.615" Head - 5/16" Valve Stem - 5.227" Long - Stainless - GM LS-Series 20163A Duration 275 / 277

Duration 275 / 277

Its fully automated and programmable to simulate various driving situations

3" Front Drop / 4" Rear Drop with ND2 Shocks

Polished Stainless Steel Steering Universal Joint

For top-end HP and adequate throttle response

Ferrea Exhaust Valve - 1.615" Head - 5/16" Valve Stem - 5.227" Long - Stainless - GM LS-Series 20163A Duration 275 / 277Product Description: Exhaust Valve 1. 615 in Head 0. 313 in Valve Stem 5. 227 in Long Stainless GM LS Series 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 programs for Formula