Ferrea Competition Hollow Exhaust Valve - 1.600" Head - 0.313" Valve Stem - 5.200" Long - Stainless - GM LT-Series 4704021-20-M If you don't have a

If you don't have a compatible device

1979-2000 GMC C3500

and set the power level

Height Reach Is 12" To 40"

Ferrea Competition Hollow Exhaust Valve - 1.600" Head - 0.313" Valve Stem - 5.200" Long - Stainless - GM LT-Series 4704021-20-M If you don't have aProduct Description: Exhaust Valve Competition Hollow 1. 600 in Head 0. 313 in Valve Stem 5. 200 in Long Stainless GM GenV LT 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