455 / 2004R combo??

[hawaii69gs]

I understand that most of the turbo buicks (factory) like the GN's came with the 2004R trans. (If I am wrong, my apologies)
If so, I am wondering if those 200's will stand up to the torque of the 455?
Almost stock build daily driver. Gonna attempt to squeeze the two into a 65 Chevelle.
Thanks & Aloha,
Scott
Been trying to find a knowlegdeable source here in Hawaii, but no luck yet for an affordable rebuild of one I have in storage.

[bobc455]

Usually, the 200-4R will hold up nicely behind a stock 455. Remember that a 455 can create a lot of torque, and if you plan on thrashing it then you should have it rebuilt to high-performance specs.

Also, be advised that not all 200-4Rs are created equally. The ones from the Grand Nationals were stronger than the 200-4Rs that you'd find in more generic applications. But it sounds like you have one from a GN so you should be okay.

-Bob C.

[Gee_Rydes]

The 200 is a great trans. Plus it is about 3.5 inches shorter overall. Sometimes that helps. my X frame needed it.

Just put one behind a Nailhead in my 65...here:

http://www.facebook.com/pages/1965-B...a/149461030162

Dave

[39CENT]

T400 is almost indistructable stock, and is the stock trans for the 455,s. for performance a T400 with a lower 1st gear
will give great performance out of the hole, with the stock rear gears. checkout this site for more info


http://www.transmission-specialties....x.php?cPath=32

[Gee_Rydes]

TH400 is definitely awesome. isn't the TH400 a 2.48 first gear? The 200 is a 2.74 and the 700 is a 3.06.

Plus, the 200 has a .67 OD. Now that is cool.

[2nd]

they sell adapter plates for under $90 to put a chevy pattern trans. behind a buick motor. i've got a 700R4 behind my 455. (I'm an overdrive kinda guy.) trans came out of an 86 corvette and my transmission shop said it had a manual converter lock-up so no need for switches etc. to retain lock-up.

[hotrodrivi]

I understand that most of the turbo buicks (factory) like the GN's came with the 2004R trans. (If I am wrong, my apologies)
If so, I am wondering if those 200's will stand up to the torque of the 455?
Almost stock build daily driver. Gonna attempt to squeeze the two into a 65 Chevelle.
Thanks & Aloha,
Scott
Been trying to find a knowlegdeable source here in Hawaii, but no luck yet for an affordable rebuild of one I have in storage.

I would not trust a 200 on a 455.But almost stock youl probably be ok.Also rear gears 3.23 up to 3.83 would put less stress on trans.
I have a 68 riv with 455 and 700r4 trans.it costs about 650. dollars to build one strong enough. Thats if you build it your self.

[mpvance]

I'm just getting started on my 72 GS/GSX Clone done my way. I'm wondering which 700R4 is the one to use behind my warmed up 455. I know many are from Torque Arm (Firebird/Camaro) or Torque Tube(Corvette). How do you hook these to the stock Rearend of the A Body? Or is one from a truck Better?
I'm probably a year off but like to collect parts when the price is right.
Thanks

[bob k. mando]

if you want a stock unit you'd want a HD unit out of a GN or Corvette.

most any 200r4 can be built to those HD specs though and any 30 year old trans which is going to see hard use should probably be rebuilt anyways.

[SammaS]

Just a quick history and how it works for drag racing. The 2004R came about when fuel economy was the big player. Why does that make it good? Spin an input shaft of a 2004R and then one of a 400, 350, 700R4. They save a huge amount of torque loss in spinning the internals. They are excellent street/drag tranny's. Light, good ratio's and they can hold up just fine. They didn't come in trucks... like the others, so there is a trade-off with abuse. But, how often do you pull someone out of the mud with your Buick?