Chevrolet Performance supplies the performance parts needed, including these front cover bolts, to complete a successful build and to keep your vehicle going strong! Manufactured specifically for use in Chevy engines, the front cover bolts feature a built-in washer face with case-hardened serrations. The washer face and hex head design easily permit the use of a socket wrench for a quick and accurate installation. Chevrolet Performance offers engineered fastening solutions to suit your needs.