Can I drop my 1994 GMC Jimmy engine into a 2004 Envoy?

Asked by Sep 16, 2015 at 03:51 PM about the 1994 GMC Jimmy 4 Dr SLE SUV

Question type: Maintenance & Repair

My 1994 GMC JImmy was t-boned and insurance wants to total it out and
pay out very little.  The engine is still very solid.  It has been our cabin car
for the last 10 years.  Stored winters and only 1000 miles a summer.  I
have found some trucks, the 2004 GMC ENVOY above, that have fried
their engine but the body is still good.  My question is how expensive is it to
swap engines and what vehicles would be workable.
Thank you

4 Answers

98,385

The Envoy has the new GM design engine in it and so far I haven't found any information about putting in older engines in late model rigs, plus you have an old OBD 1 system in the Jimmy and the OBD 2 system in the Envoy so even if it could be done it would never pass inspection stations if your state requires it for licensing. If it doesn't, then you might be able to use the entire ODB1 system and transfer it into the Envoy along with the rest of the powertrain, mounts will have to be custom made if there is indeed room to put a 350 in an Envoy.

2 of 2 people found this helpful.

What would switching an engine cost, roughly?

98,385

run about 1000 to 1500 out here if it was a straight swap.

2 of 2 people found this helpful.

Thank you.

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