[Gmecm] Bellhousing Design-Iron Duke

Sat Feb 18 22:51:36 UTC 2006

I'll add to this...  I'm investigating putting a Toyota Supra Turbo 5-speed
behind my Valiant's 7730-controlled 340, and found this thread to be VERY
helpful when it comes to swaps:
http://www.jeeps-offroad.com/showthread.php?t=4740

Greg55_99 has really done some excellent salvage yard research, and has
given me some interesting things to think about... like how would a Neon
SRT-4 engine with a 5-speed motivate a 2400# early Dodge Dart?  Hopefully
there will be some nice little tidbits there for you, too.

Clair
69 Valiant 340/7730
FTWTX

----- Original Message ----- 
From: "Jake Tucker" <jktucker at usamedia.tv>
To: <gmecm at diy-efi.org>
Sent: Friday, February 17, 2006 9:03 AM
Subject: RE: [Gmecm] Bellhousing Design-Iron Duke

> All,
> I know this is a little off-topic, but since this thread has
> contained a lot of information about bell-housing patterns, I thought
> I'd ask.  A friend of mine is trying to find a new powerplant for a '71
> Alpha Spyder.  He wants a newer dual-overhead cam motor, but since they
> are all front drivers these days, he doesn't know where to start.  From
> this thread, it appears that they would use the same bell-housing as an
> S-10, even though they are meant for FWD.  He's been looking at Quad
> 4's, and I have a Saturn motor laying around.  Would either of those
> bolt to a RWD transmission?
>
> Jake
>
>
> -----Original Message-----
> From: gmecm-bounces at diy-efi.org [mailto:gmecm-bounces at diy-efi.org] On
> Behalf Of bcroe at juno.com
> Sent: Thursday, February 16, 2006 5:45 PM
> To: gmecm at diy-efi.org
> Subject: [Gmecm] Bellhousing Design-Iron Duke
>
>
> Actually, there were more than 3 bellhousings even for
> something as new as a THM400.  The 64 buick had a
> special round bellhousing, as did Cadillac.  The Cad 429
> had a bellhousing which looked like the BOP, but a couple
> holes were drilled differently.  This also affected the THM425,
> though all 68-78 and later THM325s used the BOP pattern.
> There were other 400s built for RR and Jags, etc.
>
> Adapters are cool, have done them also.  Bruce Roe
>
> 16 Feb 2006 "Jason M." <galaxiecustom500 at sbcglobal.net> writes:
> > Just a small addition, the Chevy/GMC and the B.O.P.
> > bellhousing pattern share the dowel pin location and
> > lower mounting hole.  Relatively easy to
> > make an adapter between the two.  Also cheap to buy.
> >
> > Jason
> > ----- Original Message -----
> > From: "Andrew Gibson" <andrewsharyn at yahoo.com>
> > To: <gmecm at diy-efi.org>
> > Sent: Feb 15, 2006 11:56 PM
>
> > > For those who are getting a little excited here, let me shed some
> > light.
> > > GM made 3 different bellhousing designs. The Chev/GMC which can
> > easily be
> > > identified as being the same as a sbc 350. The
> > Olds/Pontiac/Buck/Cadillac
> > > which has the same width as a sbc but looks like a Y on top. Both
> > of these
> > > are strictly rear wheel drive bellhousings EXCEPT on the THM425
> > trans for
> > > early fwd caddy and olds with a V8. The last is the Front wheel
> > drive
> > > design which also was used in the S10 series trucks with a 2.5L or
> > > 2.8L engine. It looks like a trapeziod.
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