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94 monte carlo 640 engine swap question crankshaft coupler size

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  • 94 monte carlo 640 engine swap question crankshaft coupler size

    I am replacing the engine in my 94 Monte Carlo with an sbt engine out of a daytona I believe is a 96. The engine in my monte carlo was an 18 millimeter crank the engine in the daytona is a 24 millimeter crank. Other than the coupler on the engine and spacer washers is there anything else i would need to change? additional spacers or coupler on the pump?

  • #2
    Re: 94 monte carlo 640 engine swap question crankshaft coupler size

    If you can find a coupler to fit you should be fine.
    SBT Tech Support is here to help with your problems.
    We try to answer each question quickly and accurately.
    Please do not use Private Messaging for Tech Support, use the forums.

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    • #3
      Re: 94 monte carlo 640 engine swap question crankshaft coupler size

      So are you swapping out the 640... For a 770? I want to do this as well and I want to know what all the mods will be I know it will fit in my 95 montego but with all the extras uch as the trim motor and the impeller assembly... I just need more info on the swap...

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