Not sure. There is an over head 3.8, do not believe so on the small 6, but
not sure. The 2.8, 3.1 and 3.4 for are the same block. Everything can
remain the same on the top end. You will push the most from the 3.4 by per
There was a DOHC 24 valve version of the 3.4 that was available in the
Lumina Z34, and the Lumina and Monte Carlo LTZ, that put out 210 Hp. This
was a FWD block and I'm not sure if all the parts can easily be transferred
to a RWD block. Probably not worth the cost. - Gary
The problem you introduce there is that the ECM (plus programming to tune to
the weight differential and all that) and wire harness. Not the case with a
2.8 to 3.1 or 3.4 upgrade. Not to shoot down, but much more simplistic with
the simp swap. Otherwise, you might as well spend a couple bucks extra to
drop in a 350.
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