ACL Ford V8 351M-351W-400 1969-98 (Half Groove) Engine Crankshaft Main Bearing Set

Already running a built Ford V8? This main bearing set is the next piece of the puzzle for your 351M, 351W, or 400 engine. ACL has been making engine bearings for a long time, and this set is built to handle the demands of a performance or rebuilt engine. These are the main bearings that sit between your crankshaft and the engine block, supporting the rotating assembly and ensuring it spins true.

What sets this set apart is the half-groove design on the main bearing shells. This unique feature helps to distribute oil more evenly around the crankshaft journal, which is especially important in higher-performance or rebuilt engines where oil pressure and flow are critical. This improved oiling can help reduce friction and wear, keeping your engine running smoothly for longer. They're made to fit your 1969-1974 Ford Country Sedan with the specified V8 engines, meaning they'll install without modification.