Pro Series Flexplate Bolt Kit

The ARP 244-2901 Pro Series Flexplate Bolt Kit is engineered to provide a significantly more robust connection than OEM hardware for Chevrolet LS Gen III and Gen IV engines. Forged from high-strength 8740 aerospace alloy, these bolts are heat-treated before undergoing thread rolling and machining processes to ensure maximum durability and reliability. Key features include an exclusive, flat 12-point head design that offers improved socket engagement and a larger-than-stock shank diameter. This design not only enhances the bolt's overall strength but also provides better register for precise alignment. The specifications for this kit include a thread size of M11 x 1.5, an under-head length (UHL) of 0.880 inches, and a socket size of 3/4 inch 12-point. These flexplate bolts are specifically designed for LS-based engines, including popular displacements like 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L. They are compatible with engines from 1997 through 2013, with extended compatibility noted for L96 engines through 2019.