The 200-4R can be built to withstand a lot of torque - you probably don't
need the beefing that these guys can provide but the notes and selected
upgrades might come in handy:
On Thu, 14 Oct 2004 08:00:25 -0700 J Forbes wrote:
> > Date: Thu, 14 Oct 2004 09:07:49 -0400
> > From: "Bill Bailey" <firstname.lastname@example.org>
> > Subject: [oletrucks] 200-4R Transmissions
> > Hi Group
> > I have been doing some investigation into changing over my TH-350
> > transmission to a unit that has overdrive and I've run across the 200-4R
> > transmission. Has anyone ever used one of these behind a small
> block Chevy?
> >>From what I've read it appears they were used in mostly 6 cylinder
> > applications but I've also seen where they were used behind the
> Turbo V-6
> > that was used in the Buick Grand National and I don't think my stock 350
> > would task it if it can handle the GN.
> > It looks like the overall dimensions between the TH-350 and the
> 200-4R are
> > within 1/8" of an inch of each other and the mount needs to moved
> about 6"
> > back to deal with the 200.
> > If anyone has used one I would be interested in knowing how they
> handled the
> > TV cable, did you use the kit made by Bowtie Overdrives? Did it
> hook up easy
> > and work as advertised?
> > I'd appreciate any and all opinions, advice, and anecdotes
> concerning this
> > swap.
> > Thanks!
> Sounds like you have mostly accurate info about it. Keep in
> mind that unless the tranny you get actually came from a GN,
> then it won't be strong enough to deal with a 350 in a truck
> without some beefing. Talk to a reputable local
> transmission guy to see what's involved. Hopefully the
> tranny you're looking at is the dual bolt pattern type that
> will bolt onto a chevy.
> The TV cable is critical, you can either use a kit or cobble
> something up, but it needs to be right, and adjusted
> properly (possibly using a pressure gage) for long tranny
> life and good shifting.
> I had a couple 200-4Rs laying around for years and finally
> got rid of both of them recently...since I'm into big
> blocks, they won't do me much good.
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