Stock replacement B Engine pushrod. Sold as SINGLE PUSHROD only for service replacement purposes. Centerless ground from c1010 high carbon steel 5/16" tubing with a .060 wall thickness, these feature welded ends and exceed OEM specs. These are supplied in factory "B" (361/383/400) engine lengths of 8.575" long. Nice quality units at a very reasonable price. Use with stock stamped steel non adjustable rocker arms.