: 1997 sts



Northstar333
02-10-10, 02:43 PM
What year engines will interchange with a 1997 STS?

Thanks!

Mark C
02-10-10, 08:05 PM
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.