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Edelbrock 8581 - Head Bolt Kit for 60809/60819 409 Perf RPM Cylinder Heads

Edelbrock 8581 - Head Bolt Kit for 60809/60819 409 Perf RPM Cylinder Heads

Edelbrock | 8581
SKU: EDEL-8581
Regular price $261.99 USD
Regular price $288.19 USD Sale price $261.99 USD
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Edelbrock 8581 - Head Bolt Kit for 60809/60819 409 Perf RPM Cylinder Heads

Cylinder Head Bolt Kit - Hex Head - Chromoly - Black Oxide - GM W-Series - Kit

Edelbrock #8581 is a Head Bolt Kit for 1958-65 Big-Block Chevrolet 348/409 "W" Engines with Edelbrock 60809. 60815, & 60819 Performer RPM Cylinder Heads. This kit contains a complete set of Head Bolts & Washers for a pair of heads.

The Edelbrock #8581 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
Thread Type: Coarse
Quantity: Kit
Thread Diameter: 0.4375
Material: Chromoly
Washers Included: Yes
RGL: WARNING: This product can expose you to Chromium, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.
Length: (16) 3.45 in, (20) 4.18
Minimum Length: 3.45
Head Drive Type: Hex
Finish: Black Oxide
Grade Type: Performance
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