PRW Power Main Cap - 4-Bolt - Center Caps - Straight Bolts - Big Block Chevy - Set of 4 AA0710AF2T64 10-1/2 x 8-1/2 x 1/4

10-1/2 x 8-1/2 x 1/4 in

Heat treating with rolled threads for superior form and strength

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

Simplify valve lash adjustment

Crank relief must be 6

PRW Power Main Cap - 4-Bolt - Center Caps - Straight Bolts - Big Block Chevy - Set of 4 AA0710AF2T64 10-1/2 x 8-1/2 x 1/4Product 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.