Engine swap (Page 1/1)
madbrad01 SEP 03, 11:10 AM
Just watched you tube on a Chevy atlas 5 cyl. By nivlac57 and was wondering if that engine would fit in a Fiero?
82-T/A [At Work] SEP 03, 02:46 PM

quote
Originally posted by madbrad01:

Just watched you tube on a Chevy atlas 5 cyl. By nivlac57 and was wondering if that engine would fit in a Fiero?



A lot of people put larger V6s and even a bunch of different V8s into the Fiero, and they all fit in a transverse configuration (stock). The only issue with the 5 cyl is that it's a little long. I think it's a 3.7 liter. It's also a DOHC engine, so it's taller too. I think the issue would really be the length (width in the car) of the motor. It would be longer than say, adding another cyl to the Iron Duke (if that was a thing)... it's effectively longer than say an LS1 V8. You do have a little bit of room there, but you'd need custom drive shafts, and would probably want to recenter the engine / transmission in the rear of the car to make room. The L6 version would probably be too long.
Raydar SEP 03, 04:19 PM
There were also 2.8 and 2.9 liter 4 cylinder Atlas engines, that could probably be made to fit.
But at that point, you could have an Ecotec, which already has been done. Probably not worth reinventing the wheel, for less horsepower.

[This message has been edited by Raydar (edited 09-03-2025).]

Dennis LaGrua SEP 05, 03:57 AM
Over the years a variety of engine swaps have been done with Fieros but using the GM engines with the standard FWD bolt pattern seems the easier route.

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