The ACL Race Series Main Bearing Set in STD Size is the perfect choice for those looking for high-performance engine bearings with precision engineering and quality construction. This set, with a product code of 5M909HX-STANDARD, is designed for crankshafts and features a Race Series (Tri-Metal) material construction that provides durability and reliability.

With a 0.001" extra oil clearance, this main bearing set is ideal for high-performance engines that require a bit of extra lubrication. The set includes bearings for positions 1, 2, 3, and 4, with standard shaft diameters ranging from 2.4484" to 2.4493". The maximum wall thickness is 0.0949", and the housing bore ranges from 2.6406" to 2.6416".

The ACL Race Series brand has a long history of precision engine bearing manufacturing, with a strong presence in the global automotive industry. The brand's performance engine bearings have been used in various motorsport applications, from Formula 1 to Australian Supercars, demonstrating their durability and reliability under extreme conditions.

With a reputation for robust metallurgy, quality, precision, innovation, and performance, ACL Race Series bearings are the top choice for engine builders worldwide. The company's vertical integration ensures that every aspect of the manufacturing process is closely monitored and controlled, resulting in high-quality products that meet international standards for quality management, environmental management, and occupational health & safety.

Whether you're building a race car or upgrading your street machine, the ACL Race Series Main Bearing Set in STD Size offers the performance and reliability you need to push your engine to its limits. Trust ACL race Series for precision-engineered engine bearings that deliver unrivaled performance and durability.