will a 2000 pontiac sunfire engine fit inside of a 2005 pontiac sunfire?

Asked by Elliot Jun 05, 2016 at 04:53 PM about the 2000 Pontiac Sunfire SE

Question type: Car Customization

i have a 2000 pontiac sunfire with 108,000 miles on the engine but really bad
rust on the bottom of the vehicle and i have a 2005 pontiac sunfire with a bad
engine my question is will the 2000 sunfire engine work in the 2005 sunfire?

103,085

KenF answered 8 years ago

Assuming you have the 2.2L for both? Should all line up, but you may need to swap over some of the modules/harnesses as well. The '05 should be the 2.2 ecotec, which I believe has a higher horsepower rating than the '00 2.2. I don;t think it's a big enough difference to affect gear ratios but I would still keep the engine/trans mated and swap over as a unit. The real challenge is the computer/ecu and harness mating between different model years.

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