2.8L/3.1L AND 3.8L FWD same bellhousing pattern?

[Terryk]

Ok, we have three yes (same) , and two no's (different).

I wondered if the 3.8L in the Camaro was the Buick or the Chevy. Why not
the Chevy? But that would require an adapter plate too. It would fit a
little better though.

TK

----------
> From: Sketch <sketch at r34h11.res.gatech.edu>
> To: diy_efi at efi332.eng.ohio-state.edu
> Subject: Re: 2.8L/3.1L AND 3.8L FWD same bellhousing pattern?
> Date: Sunday, December 14, 1997 11:11 AM
> 
> > I thought exactly the same thing, but a guy that does Quad 4 swaps said
he
> > ran into that problem. The bolt patterns were different. I am assuming
that
> > he is right. Maybe someone can nail this down for me. I'm using an
Isuzu 5
> > speed right now. Works fine, but the gears are too low. From 6500, I
drop
> > to 4000 which puts me too far into the torque curve. The Getrag would
drop
> > me into about 3200 from 2nd to 3rd. If made a big difference in a
friend's
> > Fiero.
> 
> Yes, the Quad 4 does have a different bolt pattern.  If you use a Quad 4,
> you will need the Getrag 5-speed or automatic that came with it (or
> another one).  All of the other GM L4/V6 FWD's use the same bolt pattern.

> (I think the NorthStar might, as well?)  I don't think the BOP/Chevy bolt
> pattern thing holds much weight as far as FWD goes, I think it's all just
> "GM". 
> 
> > I considered the Q4, but the HO's are hard to find. The Buick has the
> > problem of never being mated to a manual tranny. They check that in
> > California (if they decide to look, that can bounce the swap.) I've
been
> > over it extensively with CARB.
> 
> Actually, the Buick _IS_ mated to a manual tranny - in the 95+ F-bodies.
> They use a RWD Series II 3800, rated at 200hp.  (5hp less than the FWD?)
> 
> As someone else posted, you will need to make your own flywheel anyway,
> and the web page he listed will tell you how.  It also mentions that the
> RWD flywhel is too thick, but could probably be machined down to fit.
> 
> BTW, there's some info on various Fiero engine swaps on my web page (see
> below) which might be interesting to you.  :)
> 
> C'ya    |  86 Fiero SE 2m6 4-speed  |  Space Coast Fieros
> Sketch  |  Daytona Beach, FL        |  Florida Fiero Council
> 
> Florida Fiero Council & Online Service Guide:
> http://apollo.pacificweb.net/~sketch/
>