The 2023 one would be nice to get as its got the updated block and bottom end. Its the Turbomax spec L3B. Same RPO code "K", GM never changed it. Â
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I see a couple issues.
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1st issue that I see is if you got a new engine from GM, there is an updated ECM calibration required for a new crate that services 2020-2022 non Turbomax/HO engines. What it does, I have no idea. I do believe the new replacement engines are also of the Turbomax spec but don't change to that tune spec. Â
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2nd, 2023 is GM Global B computer platform, so if any changes were made to the connectors or sensors, those won't compute to your truck which is Global A.
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The other thing on that 2023 is there is a ground strap that is on the 2020-2022 engine that is not present on the 2023-up engine. Â
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So ideally, you'll want the right engine to be safe. Â
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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.
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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.
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Thanks, JM
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