The ACL Race Series Main Bearing Set in STD size is a high-performance product designed specifically for GTiR engines. Made from the Race Series (Tri-Metal) material, these bearings are built to withstand the high demands of racing and performance driving.

This main bearing set includes bearings for positions 1, 2, 3, 4, and 5, ensuring a complete and reliable replacement for your engine. With a standard shaft diameter of 2.1636"/2.1646" (54.956mm/54.980mm), maximum wall thickness of 0.0780" (1.980mm), and housing bore of 2.3206"/2.3216" (58.944mm/58.968mm), these bearings are precision engineered for optimal performance.

The ACL Race Series Main Bearing Set also includes thrust washers (1T2964-STD) for added support and durability. With a maximum length of 0.7520" (19.100mm), these bearings are designed to meet the highest standards of quality and reliability.

ACL has a long history of manufacturing precision engine bearings in Launceston, Australia, and has become a trusted OEM supplier to the global automotive industry. The Race Series Performance Engine Bearings are a testament to ACL's commitment to quality, precision, and innovation.

Whether you're a professional engine builder or a performance enthusiast, the ACL Race Series Main Bearing Set is the perfect choice for your GTiR engine. Trust ACL for all your performance engine bearing needs and experience the difference that quality and reliability can make in your racing experience.