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GM Big Block Chevy Large Oval Port Heads 3872702 1966 396 325HP 360HP 427/390HP
GM Big Block Chevy Large Oval Port Heads 3872702 1966 396 325HP 360HP 427/390HP
GM Big Block Chevy Large Oval Port Heads 3872702 1966 396 325HP 360HP 427/390HP
GM Big Block Chevy Large Oval Port Heads 3872702 1966 396 325HP 360HP 427/390HP
GM Big Block Chevy Large Oval Port Heads 3872702 1966 396 325HP 360HP 427/390HP
GM Big Block Chevy Large Oval Port Heads 3872702 1966 396 325HP 360HP 427/390HP
GM Big Block Chevy Large Oval Port Heads 3872702 1966 396 325HP 360HP 427/390HP
GM Big Block Chevy Large Oval Port Heads 3872702 1966 396 325HP 360HP 427/390HP
GM Big Block Chevy Large Oval Port Heads 3872702 1966 396 325HP 360HP 427/390HP
GM Big Block Chevy Large Oval Port Heads 3872702 1966 396 325HP 360HP 427/390HP
GM Big Block Chevy Large Oval Port Heads 3872702 1966 396 325HP 360HP 427/390HP
GM Big Block Chevy Large Oval Port Heads 3872702 1966 396 325HP 360HP 427/390HP

GM Big Block Chevy Large Oval Port Heads 3872702 1966 396 325HP 360HP 427/390HP

$ 237.07

Availability: 100 in stock
  • Restocking Fee: No
  • Item must be returned within: 30 Days
  • Return shipping will be paid by: Buyer
  • Returns Accepted: Returns Accepted
  • Brand: Chevrolet
  • Condition: This is a nice pair of original heads that do not appear to have ever been modified. The date codes are C 28 6 and D 5 6 which decode as March 28th and April 5th, 1966. These heads have been cleaned and checked for cracks with none found. The heads are bare cores that will need to be rebuilt with new hardware. These heads have no porting on the intake or exhaust ports. I see no breaks, repairs,or modifications to these heads. All threads are in good shape with no helicoils or thread inserts. These are good cores that need rebuild which may require seat and guide work although they look good visually. These original 3872702 heads have become very hard to find, especially in this original unmodified condition. Don't miss this awesome unmodified pair of date matched heads!
  • Interchange Part Number: GM Chevy Chevrolet BBC Big Block round
  • Refund will be given as: Money Back

    Description

    This is a pair of original GM cylinder heads for a Big Block Chevy Engine. The casting number on each head is 3872702. These heads have large oval intake ports and closed combustion chambers. These heads were used by GM on 1966 396/325HP, 396/360HP, and 427/390HP engines.
    The date codes are C 28 6 and D 5 6 which decode as March 28th and April 5th, 1966.
    This is an awesome pair of original heads.
    This is a nice pair of original heads that do not appear to have ever been modified. These heads have been cleaned and checked for cracks with none found. The heads are bare cores that will need to be rebuilt with new hardware.  These heads have no porting on the intake or exhaust ports. I see no breaks, repairs,or modifications to these heads.  All threads are in good shape with no helicoils or thread inserts. These are good cores that need rebuild which may require seat and guide work although they look good visually. These original 3872702 heads have become very hard to find, especially in this original unmodified condition. Don't miss this awesome unmodified pair of date matched heads!
    This is your chance to own awesome pair of factory 1966 Big Block Chevy heads you have been dreaming about for your special engine or collection at a great price. Don't Miss Out!
    Check out my other listings for more rare and hard to find parts.