472 transmission bolt pattern
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500, 472, 425, 368 Discussion, 472 transmission bolt pattern in Cadillac Engine Technical Discussion; i have a 73 cadillac hearse that had a 472 in it the motor is not any good and i ...
  1. #1
    carbondog is offline Cadillac Owners Member
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    472 transmission bolt pattern

    i have a 73 cadillac hearse that had a 472 in it the motor is not any good and i found an 84 cadillac for sale with a 4100 in it and i was wondering if any knew if it has the same bolt pattern as the 472?

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  3. #2
    The Ape Man's Avatar
    The Ape Man is offline Cadillac Owners Connoisseur
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    Re: 472 transmission bolt pattern

    The bell housing is the same. Please post pictures after it's done.

  4. #3
    eldorado99's Avatar
    eldorado99 is offline Cadillac Owners Connoisseur
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    Re: 472 transmission bolt pattern

    Are you sure you want to swap a 7.7 L for a 4.1 L in a 5000-6000 pound car? I think you may want to rethink your strategy. Your fuel mileage is going to get worse, and its going to be worse than a lawnmower as far as power goes. Not to mention the fact that the motor will probably wear out twice as fast. May I suggest rebuilding the 472 that's in there already?

  5. #4
    Ted in Olympia is offline Banned
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    Re: 472 transmission bolt pattern

    These engines are not at all the same. Maybe the only thing they do share is the bold pattern for the trans.

    Where are you located?

    TED

  6. #5
    carbondog is offline Cadillac Owners Member
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    Re: 472 transmission bolt pattern

    i would have rebuilt the other motor but my brother sold a bunch of junk cars to a local junk yard to crush and they took the motor with them. and i am located in stanon KY

  7. #6
    davesdeville's Avatar
    davesdeville is offline Banned
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    Re: 472 transmission bolt pattern

    I suppose it could be done, but most people swap out 4100s for 472/500s for a reason. A 4100 is badly underpowered in a 3900lb Deville, but a 6000lb hearse wouldn't even be able to sustain freeway speeds I don't think. Plus the 4100 is FI, which would make the swap kind of a PITA. Find another big block.

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