Sunday, February 16, 2025

a retired GM engineer swapped the Fiero’s stock Iron Duke cast-iron 4 for the all-aluminum Oldsmobile 225 C.I. V-8.


the Olds 225 was lighter, smoother, much more powerful, and vertically shorter so it fit better.
However, GM had already sold the rights to the engine to Rover, so it was no longer available.

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2 comments:

  1. userbronco10:42 AM

    My brother installed a Cadiliac 4.9 V-8 engine in his 88 Fiero. aluminum block so its lighter than the cast iron V-6, but twice the HP

    ReplyDelete
    Replies
    1. Jesse5:52 PM

      That's just SMART! My compliments!

      Delete

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