jmajor422

Thanks for the reply. I am reading other articles talking about how it will work if you reuse the ECM from the 2021. Which I can do. But I wont't get any of the additional torque... which I don't really care. I just need it working. Trying to decide if I keep the engine or if I have to return it and go find another engine?

My 2021 Silverado 2.7L (K as 8th letter in VIN) needs a new engine. Just picked up a 2.7L engine from an auto salvage... Salvage yard is telling me this is the right engine. Ran the VIN of new engine and found that it is a 2023 Silverado 2.7L and not a 2021 Silverado 2.7L Is there a proven checklist of things I need to do to do the engine swap OR Should I just return it back to the auto salvage. Looking for some real world advise besides AI... as I don't want to install an engine that will always give me a check engine light. Thanks, JM