Swapping a 02 Tahoe 5.3 in to a 4.3 Silverado 1500 wt

Asked by JerryHeartburn Mar 30, 2021 at 07:22 PM about the 2006 Chevrolet Silverado 1500 Work Truck RWD

Question type: Car Customization

I have a donor Tahoe with the harness, ECU,
and motor. Would I be able to swap in to my
06 Silverado that came with a 4.3?

1 Answer

Guru9V1J1T answered 3 years ago

Yes you can but the transmission might not like it. The 5.3 will bolt up but the transmission might not comply with it. I'd see if a local performance shop can make the transmission work with the engine.

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