ACL BMW N63B44/S63B44 4.4L V8 .025mm Oversized Main Bearings

ACL manufactures performance engine bearings used in race engines across a wide range of motorsports disciplines, from sport compact and drift racing to oval track, drag racing, and land speed record applications. ACL Race Series bearings use a specialized tri-metal construction with a proprietary copper-lead alloy overlay that provides excellent load capacity, conformability, and wear resistance under the high RPM and cylinder pressure conditions of performance engines. Popular ACL Race Series Bearing Applications ACL Race Series bearings are available for main bearings, connecting rod bearings, and thrust washers across a broad range of American, Japanese, and European performance engines including Honda, Toyota, Subaru, Mitsubishi, Nissan, Ford, Chevrolet, and Dodge applications. ACL bearings are manufactured to OEM dimensional tolerances and are available in standard, 0.001-inch, 0.010-inch, and 0.020-inch undersize options to accommodate different crankshaft regrind specificati...

Welcome to our exclusive collection of Bearings, where quality meets performance. Our carefully curated selection features a wide range of bearings designed to meet the needs of various applications, from industrial machinery to everyday gadgets. Whether you are a professional engineer or a DIY enthusiast, our collection of bearings provides the essential parts needed to ensure smooth operation and durability.     Why Choose Our Bearings? High Quality: Each bearing in our collection is sourced from trusted manufacturers, ensuring reliable performance. Variety: We offer different types of bearings, including ball bearings, roller bearings, and needle bearings, catering to diverse requirements. Affordability: Enjoy competitive pricing without compromising on quality, making our bearings an excellent choice for any budget. Expert Support: Our knowledgeable team is here to assist you in finding the perfect bearings for your specific needs.   Applications of Our Bearings Our collec...

This engine parts collection covers oil catch cans, thermostats, thermostat housings, radiator components, coolant accessories, engine covers, fuse box covers, cap covers, throttle bodies, supercharger pulleys, idler pulleys, tensioner pulleys, and engine bay dress-up parts for trucks, SUVs, muscle cars, boosted builds, high-horsepower street cars, and performance vehicles that need better reliability, cooling, airflow, oil control, and under-hood styling. The collection is particularly strong for Dodge Challenger, Charger, Durango, Jeep Grand Cherokee Trackhawk, and Ram TRX platforms running 6.2L Hellcat, 6.4L HEMI, and 5.7L HEMI engines, where oil catch can and cooling upgrades address known OEM weaknesses in the PCV and thermal management systems. Import performance platforms including GM LS-based builds, Chevrolet Camaro, and Corvette applications are also represented through Mishimoto, CSF, and ZPE GripTec product lines. Builders who invest in engine bay organization and reliab...

This engine block collection covers bearings, gaskets, engine mounts, block off plates, block heaters, PCV valves, sleeves, and engine bay accessories for performance builds, engine refreshes, OEM-style replacement, diesel truck upgrades, HEMI builds, Hellcat and Trackhawk platforms, LS swaps, Honda swaps, Nissan VR38DETT builds, and Toyota truck engines. Main bearings, rod bearings, and connecting rod bearings from ACL Race Series, King Engine Bearings, and Clevite are the most critical internal components for builders refreshing the rotating assembly on street cars, drag builds, or engines being prepared for forced induction. Engine mounts and polyurethane mount upgrades from Innovative Mounts and Kartboy address drivetrain movement in sport compact and high-torque performance applications. Gasket kits from Cometic and MAHLE seal the oil, coolant, and exhaust passages in both stock-displacement and overbore engine combinations.Popular UpgradesBest-selling products include ACL Race...