Pre 1970 AMC Head Bolt Kit

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The Edelbrock #8531 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.


Availability Available
Application Application Specific
UPC 00085347085316
Quantity Kit
Thread Type Coarse
Thread Diameter 0.4375 in
Minimum Length 2.40 in
Color Black Oxide
Availability Note Available to Order
Warranty 12 Months
Hazardous Materials Warning WARNING: This product can expose you to Chrome, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit
Installation Notes
  • The Edelbrock #8531 is made specifically for Pre-1970 AMC V8
  • Be sure that the surface of the block and the surface of the head are thoroughly cleaned to remove any oily film before installation. Use alcohol or lacquer thinner on a lint-free rag to clean. #60109 and #60119 heads will have to apply a thin bead of silicone around the oil drain back provisions. This will prevent any leaks that may occur. CAUTION: The silicon bead on OEM type head gaskets will overlap these provisions. The addition of the silicone bead will help provide a better seal. Apply oil or suitable thread lubricant to head bolt threads and the underside of bolt heads and washers. Using the torque sequence (See Figure 1), torque all 7/16
Finish Black Oxide
Head Drive Type Hex
Length (10) 2.40 in, (4) 3.06 in, (14) 3.78 in
Material Chromoly