MAIN CAP SET CHRY BB

These aftermarket main caps strengthen factory 2-bolt blocks and 4-bolt blocks. They feature angled side bolts that pull from the side walls of the block, not the flimsy main web area, to prevent 'cap walk' which can cause bearing damage and horsepower loss. They are CNC machined from high strength ductile material, which is strong but not too rigid, preventing increased shock loads to the crank and bearings. Only 0.030" material removal is required upon initial installation, allowing for 100% cleanup on damaged or crooked blocks. A drill bushing for the side bolt holes is included, and installation can be done with a hand drill and tap. Milodon main studs are highly recommended for maximum strength.