will a 2005 cadillac sts 4.6 engine and trans work in a 2005 cadillac cts?
Feb 15, 2023 at 1:38 AM
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STEVE W.
CERTIFIED EXPERT
15,113 POSTS
Not without changing a lot of other pieces as well. The Northstar uses a lot of different items than the 3.6 you currently have and as the CTS never got the Northstar in it you would need to make some custom pieces as well.