ACL main bearing set for Buick V6 204–231 engines is cataloged for 1990–1993 applications and supplies matched mains for crankshaft support. The extended fitment notes limit applicability to 1990–93 Type L engines, 1992–93 Type 1 engines, and 1991 Type C engines only, making this set suitable where those specific engine types are being serviced or rebuilt.
ACL Buick V6 204-231 1990-93 Engine Crankshaft Main Bearing Set