ACL BMW M20/M50/M52/M54 - 1919CC 80.0mm Bore 66.0mm Stroke .001in Clearance on STD Main Bearing Set

ACL has been making engine bearings for decades, and this STD Main Bearing Set for your BMW is one of their staples. These bearings are crucial for the health of your engine's rotating assembly, providing a smooth, low-friction surface for the crankshaft to spin on. If you're rebuilding or refreshing a BMW M20, M50, M52, or M54 engine, getting the right bearings is a key step for a long-lasting build.

This particular set is designed with a standard (STD) size and features a tight clearance of .001 inches. This level of precision is important for performance builds where oil pressure and bearing life are critical. The bearings are well-built to handle the demands of these engines, ensuring they can withstand the stresses of regular driving and performance use. They fit a wide range of BMW models, making them a solid option for many enthusiasts looking to restore or enhance their vehicle's engine.

When installing these bearings, it's important to follow the manufacturer's specifications for torque and lubrication. Cleanliness is also paramount during engine assembly to prevent any debris from compromising the bearing surface. This set is a direct replacement for the original equipment, simplifying the installation process for mechanics and DIYers alike.