Building or rebuilding a Chevy Small Block 350? This Speedmaster head bolt kit has the hardware you need. It includes a full set of black oxide finished, 12-point head bolts made from strong 8740 chromoly steel. They're 1/4 inch longer than standard, which is handy if you're using thicker head gaskets or have had the block or heads milled. These are track-proven for durability in performance applications. Comes as a complete kit with all necessary bolts. Always check your specific engine build requirements, but this is a solid, affordable option for many SBC 350 projects. Backed by a 12-month warranty.