Sealed Power Main Bearing - 0.030" Undersize - Mopar RB-Series SPEAKER-300 This strong billet aluminum mount

This strong billet aluminum mount has no bypass so it eliminates the possibility of unfiltered oil entering into the engine

Pilot Bearings

Crankshaft Coupler

4175 and 4500 DOMINATOR carburetors will take either one version or the other

For Big Block Chrysler applications which oil through the rocker shaft

Sealed Power Main Bearing - 0.030" Undersize - Mopar RB-Series SPEAKER-300 This strong billet aluminum mountProduct Description: Main Bearing 0. 030 in Undersize Mopar RB Series Sealed Power engine products are application engineered components, including pistons, piston rings, engine bearings, oil pumps and lifters. These proven replacement parts are the result of product development efforts, dedicated to putting only the absolute best on the street. Our engineers design and validate the engine parts to accommodate repowering engines due to wear. By