1966 Corvette 427 390hp Big Block Chevy BBC 2 Bolt Main Block 3869942 942 L-8-5

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Seller: howard7539 ✉️ (6,770) 100%, Location: Cincinnati, Ohio, US, Ships to: US, Item: 374386893078 1966 Corvette 427 390hp Big Block Chevy BBC 2 Bolt Main Block 3869942 942 L-8-5 .

1966 Corvette Big Block Chevy BBC 427 2 Bolt Main Block 3869942 942 L-8-5. IL Suffix Code.

Cleaned and checked for cracks. Cylinders are .030 4.28 bore and look good for build. I don't think it will need bored but you could if needed.   There are no sleeves. Block has one weld to repair one starter hole. See last 5 pictures. Starter bolts up perfect and block has been used with a starter on it. Deck has original GM broaching and is stamped but it can be removed or restamp.

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Part # 3869942  Date L-8-5 December 8 1965

Pad # TO427IL. 612180

Thanks for looking and have a nice day!!! 56COFF

  • Condition: Used
  • Brand: Chevrolet
  • Type: Engine Block
  • Interchange Part Number: IL Suffix Code
  • OE/OEM Part Number: Corvette
  • Manufacturer Part Number: 3869942
  • Vintage Part: Yes

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