Swapping 4.3 for lt1

Asked by Feb 24, 2018 at 10:30 PM about the Chevrolet C/K 1500

Question type: Car Customization

Just wanting to know if swapping out my 1997 4.3 Chevy ck1500 for a 1997 lt1
z28 would be difficult ? I have all the ecm and control  boxes for lt1. Anyone
that can help me with figuring  this out...thx

1 Answer


I'd say someone already has figured this sort of swap out, and likely has posted an in-depth guide on a dedicated Chevy truck forum. This site limits detailed responses and we can only insert one picture per post with no text formatting, so it's frustrating trying to post a "how to" of any sort. So for that reason, I'd suggest finding yourself a good ol Chevy truck forum and seeking your how-to there. The only other concern you should have is what your states emission's laws are, as long as your transplanted engine has a working smog-compliant exhaust and working OBD port, you should be good.

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