The Edelbrock head bolt kit for 1958–1965 Big-Block Chevrolet 348/409 W engines supplies a complete set of head bolts and hardened washers intended for Edelbrock Performer RPM cylinder heads. Bolts are cold-formed and heat-treated with reduced-diameter heads to ease re-torquing; the kit contains the hardware needed for the listed Edelbrock head applications and is supplied as a full head bolt set.
Edelbrock Head Bolt Kit for 60809/60819 409 Perf RPM Cylinder Heads