Manufactured by ARP, Edelbrock Head Bolt Kits contain a complete set of the highest quality head bolts and hardened washers available. Cold-formed to ensure molecular integrity and heat treated prior to thread rolling and machining. Reduced diameter bolt heads eliminate the need for valvetrain removal to facilitate cylinder head re-torquing. Hardened and parallel-ground washers are included. Rated at 170,000 p.s.i.

Product Reviews for ED8591 - EDELBROCK