Edelbrock 8531 - Edelbrock Head Bolt Kits

Manufactured by ARP for Edelbrock, these 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 allow cylinder head retorquing. Hardened and parallel-ground washers are included. Rated at 170,000 psi.