I have a 2000 Envoy with 142k. The 190hp 4.3 is getting old and weaker every day. I was thinking about doing a .30 over build. Nothing too crazy. Just a fresh motor, maybe a bit of headwork, cam, exhaust, intake type thing. This is my daily, not my fun car. Just want to freshen it up and give it a little more power.
My other option was finding a lower mile 5.3 or 5.7 and throwing a cam exhaust and intake and a few small boltons on it. The main problem/question with this is, I want it to be as easy as possible. Just a "quick swap". The rebuilt 4.3 would be built and everything done, then swap over the weekend. The 5.3/5.7 would be the same deal, but im worried about harness issues, fitment issues and things that could make this a problem. Will the tranny fit or bolt up, Ecu issues, Harness issues.... Those types of things.
Also, I have my R1 for fun, this, I want to keep all of the luxuries.
Any help on ideas, or past experiences would be greatly appreciated.
My other option was finding a lower mile 5.3 or 5.7 and throwing a cam exhaust and intake and a few small boltons on it. The main problem/question with this is, I want it to be as easy as possible. Just a "quick swap". The rebuilt 4.3 would be built and everything done, then swap over the weekend. The 5.3/5.7 would be the same deal, but im worried about harness issues, fitment issues and things that could make this a problem. Will the tranny fit or bolt up, Ecu issues, Harness issues.... Those types of things.
Also, I have my R1 for fun, this, I want to keep all of the luxuries.
Any help on ideas, or past experiences would be greatly appreciated.