2007 Impala 3.9L swap to 3.5L

Asked by Jul 11, 2017 at 12:36 PM about the 2007 Chevrolet Impala 3LT

Question type: Maintenance & Repair

I have a 2007 Impala equipped with a 3.9L engine. Unfortunately the engine is toast. I live in Maine. 3.5L engines are everywhere and affordable with relatively low mileage. What is the challenge of swapping in a 3.5L to replace 3.9L? Not concerned with the less HP or anything like that. Just looking for a reliable daily driver for my son. I got the car cheap and its in excellent shape. I have a lift and all the appropriate tools and equipment. I have done dozens of engine pulls and installs however most of those were fords.

Any advice & insight would be helpful. Not worried about flex fuel or anything or emission testing... that isn't happening in Maine.

Thank you,
Bria

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