Ferrea Competition Plus Valve Stainless Exhaust 1.880" Head 11/32" Valve Stem 5.425" Long - Big Block Chevy - Set of 8 R040004S Main Bearing Spacer

Main Bearing Spacer

adjustable from 40-75 PSI

Plates are drilled for mounting screws or 1/8" diameter rivets

425 in Reach

1/2 in NPT Female Ports

Ferrea Competition Plus Valve Stainless Exhaust 1.880" Head 11/32" Valve Stem 5.425" Long - Big Block Chevy - Set of 8 R040004S Main Bearing SpacerProduct Description: Exhaust Valve Competition Plus 1. 880 in Head 11 32 in Valve Stem 5. 425 in Long Stainless Big Block Chevy 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