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Old 03-01-2010, 03:23 PM   #20 (permalink)
Gasoline Fumes
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Originally Posted by MetroMPG View Post
The 3 cyl engine will fit in the 4-cyl car without messing with the transmission/axles, but it'll sit further to the driver's side than it did in the 3-cyl car, so you may have to mod the motor mounts.

It's going the other way that is more of a problem (4 cyl engine into 3 cyl car).
While the 3-cyl will fit, the two-piece axle from the 4-cyl has no place to bolt to on the 3-cyl block. You could weld the differential and only use one axle for some friction reduction.
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