The ACL crankshaft main bearing set for Ford V8 351M, 351W, and 400 engines (1969–1998, half groove) provides matched main bearing shells intended for crank support in those Ford V8s. It’s specified as a half-groove main set for applications covering the listed years and displacements. Confirm engine type and production years to ensure correct fitment for your rebuild.
ACL Ford V8 351M-351W-400 1969-98 (Half Groove) Engine Crankshaft Main Bearing Set