Engine Replacement Advice Needed!
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500, 472, 425, 368 Discussion, Engine Replacement Advice Needed! in Cadillac Engine Technical Discussion; hey guys ive got a 65 sedan deville that i recently purchased. Unfortunetly the guy i bought it from put ...
  1. #1
    Bagged65Deville is offline Cadillac Owners Member
    Automobile(s): 1965 Cadillac Deville
    Join Date
    Sep 2009
    Posts
    5

    Engine Replacement Advice Needed!

    hey guys ive got a 65 sedan deville that i recently purchased. Unfortunetly the guy i bought it from put in a rebuilt 425 motor and got rid of the 429. The 425 in my opinion doesnt have the power to pull this heavy car. So i want to swap in either a 472 or 500..but my question is will either of those engines fit without lots of modifications? simple drop? Any advice is greatly appreciated..Thanks

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  3. #2
    BRUCE ROE is offline Cadillac Owners Fanatic
    Automobile(s): Eldorado
    Join Date
    Jun 2009
    Posts
    206

    Re: Engine Replacement Advice Needed!

    If it already has a 425, all the hard work is done. Changing to a 472 or 500 is a simple bolt in.

    What transmission ID plate do you have? Bruce Roe CLC # 14630

  4. #3
    Bagged65Deville is offline Cadillac Owners Member
    Automobile(s): 1965 Cadillac Deville
    Join Date
    Sep 2009
    Posts
    5

    Re: Engine Replacement Advice Needed!

    im not sure...how can i find out what transmission id plate i have? Thanks

  5. #4
    BRUCE ROE is offline Cadillac Owners Fanatic
    Automobile(s): Eldorado
    Join Date
    Jun 2009
    Posts
    206

    Re: Engine Replacement Advice Needed!

    The trans ID isn't critical, I just wondered how the different engine pattern was done. The plate is on the right rear side of the trans. Bruce Roe CLC # 14630

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