PRW Power Main Cap - 4-Bolt - Center Caps - Straight Bolts - Big Block Chevy - Set of 4 AA0710AF2T64 Simplify valve lash adjustment

Simplify valve lash adjustment

Corner pieces are slid inside rear section and then welded or bolted to required width

Universal kits are 2" longer than standard arms and must be cut to length before welding slug into place

The unique oil pans provided racers with the power and quality they demanded

1963-1971 Chevrolet Biscayne

PRW Power Main Cap - 4-Bolt - Center Caps - Straight Bolts - Big Block Chevy - Set of 4 AA0710AF2T64 Simplify valve lash adjustmentProduct Description: Main Cap 4 Bolt Center Caps Straight Bolts Steel Big Block Chevy Set of 4 PRW Industries produces engine components for racing applications such as rocker arms, valve covers and main caps to name a few. These products offer performance gains at a value price.