Reher-Morrison sells Super Series rotating assemblies. These include the same crankshaft, connecting rods, pistons, piston wrist pins, piston rings, rod and main bearings, and oil rails supports (if required) that we use in our Super Series engines. We have carefully selected these components for their quality and durability. They have been proven on the dyno and track. We match and prep them so that they are ready for you to assemble. Reher-Morrison rotating assemblies are a great way to get Reher-Morrison quality, performance, and service for your small block engine.