engine swap

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Other Cadillac Engines Discussion, engine swap in Cadillac Engine Discussion; First posting, new member. 83 coupe deville, former deisel, dealer converted to 350 olds, hydroboost brakes, 700r4 trans. Is it ...
  1. #1
    Babs2 is offline Cadillac Owners Member
    Automobile(s): 1983 coupe deville
    Join Date
    Dec 2009

    engine swap

    First posting, new member.
    83 coupe deville, former deisel, dealer converted to 350 olds, hydroboost brakes, 700r4 trans.
    Is it possible without too many mods to swap olds engine to 425 or 472,
    looks like dealer did a very good job of the deisel swap, nothing missing, everything is intact.
    Suggestions, comments welcomed, tech site directions would be helpful.
    Car is destined to be a strong cruiser, nothing more.
    Her name is Babs2, Babs 1 was a 68 Chrysler New Yorker coupe, saddly she is gone.

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  3. #2
    DTS Diamond is offline Cadillac Owners Member
    Automobile(s): Cadillac DTS Lux III 07, DHS 04, Allante 93 06 XLR Platinum
    Join Date
    Jul 2007
    Atlanta, GA Area

    Re: engine swap

    A 403 or 455 Olds will drop right in with the 350 motor mounts and tranny. Transfer engine accessories including starter and have a blast. Did the Diesel conversion to 403 myself about 10 years ago. A muffler shop fabricated a custom dual exhaust system. Doug-J

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