Ok what if I am getting this engine for free and decide I want to strip it down and do a performance engine. New internals and such. And change out the ECM for a performance one?
Hey everyone! Looking for some info and I am having a hell of a time trying to find it. Can I pull the 5.3 out of a 2008 Sierra. Tear it down and rebuild it and put it into a 2001 Silverado using the Harness in the Silverado??