The Edelbrock #8557 bolt kit 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 valve train removal to facilitate cylinder head re-torqueing. Hardened and parallel-ground washers are included. Rated at 170,000 p.s.i.
Edelbrock #8557 is a Head Bolt Kit for 1958-76 Ford FE 390-428 with Edelbrock 60059, 60089, 60065, 60069, 60075, & 60079 Performer RPM Cylinder Heads. Complete set of Head Bolts & Washers for a pair of heads.
Ford:FE:390 (6.4L)-428 (7.0L)