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1966 Big Block Chevy 427 4 Bolt Engine Block 3869942 F 7 6 Dated Corvette Impala

$ 1452

Availability: 67 in stock
  • Returns Accepted: Returns Accepted
  • Item must be returned within: 30 Days
  • Restocking Fee: No
  • Refund will be given as: Money Back
  • Condition: Real deal 1966 427 4 bolt block. Just came back from machine shop after being cleaned, measured and magnafluxed for cracks. There are no cracks. The cylinders measure .060 overbore or 4.31 inches. No sleeves or repairs. Cylinders have pitting and will need attention. There is also scattered pitting on other areas of the block including the rear and stamp pad area. This is a real deal 427/425HP(450HP) block. These original 1966 427 blocks 4 bolt main blocks are becoming very hard to find. They were quite rare when new and are even harder to find today. Don't miss this original 1966 427 Big Block Chevy block as a great price.
  • Surface Finish: Traditional SCTA 3856208 1111093 1111100 1111098
  • Interchange Part Number: Survivor NCRS 450 HP 425 Horsepower 425HP 450HP
  • Return shipping will be paid by: Buyer

    Description

    This is an original 1966 427 engine block that was used exclusively in 66 Corvettes and Impalas. The casting number is 3869942. The casting date is F 7 6 which decodes as June 7th, 1966. Yes, this is an extremely rare 66 427 block. This is the 4 bolt main version used exclusively on 425HP and 450HP models. This is a very hard to find early Big Block Chevy high performance block.
    This is a real deal 1966 427 4 bolt main engine block.  This was recently found at the estate of an old hot rodder along with many other cool parts from his personal stash.
    I took the block to the local machine shop to be cleaned, measured and magnafluxed for cracks. There are no cracks. The cylinders measure .060 overbore or 4.31 inches. The block has no sleeve or repairs. The cylinders have no ridge at the tops of the cylinders and do have significant pitting. Due to the pitting, I think the best plan would be to sleeve it back to standard bore for correctness. That said, these blocks are known for taking a huge overbore and boring may be an option. There are also multiple head bolt threads that have professionally installed helicoils.. The externals of this block are nice with clear casting numbers. These are scatter areas of pitting on the casting including the rear of the block and the stamp pad area. This block will need full machine work but have never been blown up for cracked and will be an awesome piece when finshed. These original 1966 427 blocks are becoming very hard to find. They were quite rare when new and are even harder to find today. Don't miss this original 1966 427 Big Block Chevy block as a great price.
    Please don't let the price of this block fool you. There are others listed on Ebay for twice and three times what I have this block priced at. This is a nice block, not junk. I am simply being realistic with pricing so this block can end up between the fenderwells of a car rather than on a stand in my shop.
    This is you chance to own the original 66 427 Big Block Chevy engine block you have been dreaming about at a great price. Don't miss out!
    Check out my other listings for more rare and hard to find parts.
    Shipping:
    I will be happy to palletize this engine at a cost of which is what it will cost for the straps and pallet. I will also drop this engine off at any shipping terminal within 45 miles of Santa Cruz, CA free of charge. Shipping arrangements and payment are the responsibility of the buyer. Most of my customers end up using YRC freight which used to be Roadway Express and Yellow Freight. Other customers have had luck with freightquote.com. The weight of the block when palletized will be about 200 pounds.