Edelbrock #8503 is a Cylinder Head Bolt Kit for 1967-76 Buick 400-455 V8 Engines with Edelbrock #60037, 60039, & 60049 Performer RPM Cylinder Heads.
The Edelbrock #8503 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.
  • Highest Quality Head Bolts
  • Cold-Formed
  • Heat Treated
  • Ensures Molecular Integrity
  • Reduced Diameter Bolt Heads
  • Hardened/Parallel-Ground Washers Included
  • Rated At 170000 psi
  • Manufactured By ARP

Application Summary:

Year Make/Model
1971-1973 Buick Centurion
1973-1974 Buick Century
1967-1974 Buick Electra
1970-1974 Buick Estate Wagon
1967 Buick Gran Sport
1968-1969 Buick GS 400
1970-1972 Buick GS 455
1970-1974 Buick LeSabre
1973-1974 Buick Regal
1967-1974 Buick Riviera
1967-1968 Buick Skylark
1970-1971 Buick Skylark
1968-1970 Buick Sportwagon
1967-1970 Buick Wildcat

Additional Information:

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