The ACL Race Series main bearing set is specified for Ford production V8 engines 255, 289 and 302 in race applications, supplying main shells designed for higher-demand use. These race-series mains are intended for performance or competition engines where upgraded main bearing components are desired during rebuilds of those small-block Ford V8s.

ACL Ford Prod. V8 255-289-302 Race Series Engine Crankshaft Main Bearing Set