FOR SALE 1970 340 standard bore engine from 70 Challenger

Mechanical Parts

  1. 70gtx440dana

    70gtx440dana FBBO Gold Member FBBO Gold Member

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    I have a for sale very complete 70 340 standard bore engine. Vin # is 0B140040. Engine turns freely by hand. Bore size checks out at 4.030. I removed one head to measure and inspect bores. Block cast date is 7/69. Engine assembled 10/1/69. Correct X heads with cast dates of first week or September 69. Intake dated 8/69. Has 68-69 #394 oil pan installed. Valve covers appear correct for 70. Crank has pilot bushing for 4 speed. This is an excellent start for a date code correct motor for your restoration project. $1995/BO. PM me for more info. Joe

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    • 70gtx440dana

      70gtx440dana FBBO Gold Member FBBO Gold Member

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      more photos

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    • 70gtx440dana

      70gtx440dana FBBO Gold Member FBBO Gold Member

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      more photos....

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    • SuperRatBastid

      SuperRatBastid Member

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      It can’t measure 4.030 so can you measure it again. Or explain how it is undersized.
       
    • 70gtx440dana

      70gtx440dana FBBO Gold Member FBBO Gold Member

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      OK...maybe I missed by .010 with my caliper... however it is certainly standard bore.
       
      Last edited: Jul 21, 2021 at 11:38 PM
    • MarkLevi

      MarkLevi Member

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      Caliper's not the "correct" measuring tool (for precision), but should be "good enough" for identifying. Possibly:
      • Didn't 'zero' the caliper properly
      • Didn't actually find widest point (the diameter line)
      • 0.005" carbon ridge
       
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