1997 sts

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Northstar Engines and System Technical Discussion Discussion, 1997 sts in Cadillac Engine Discussion; What year engines will interchange with a 1997 STS? Thanks!...
  1. #1
    Northstar333's Avatar
    Northstar333 is offline Cadillac Owners Member
    Join Date
    Aug 2003

    1997 sts

    What year engines will interchange with a 1997 STS?


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  3. #2
    Mark C's Avatar
    Mark C is offline Cadillac Owners Connoisseur
    Automobile(s): 1997 Seville STS, 2000 Seville STS
    Join Date
    Jul 2007

    Re: 1997 sts

    96 to 97 STS and 96 to 97 Eldorado ETC without any changes, 93/94 either STS or SLS or Eldorado if you use your 97 heads and intake. you can make a 98/99 STS or ETC fit with some motor mount and intake changes.

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