What is the 200-4r input shaft spline count?

[crucial118]

Sup guys/gals? I am thinking of getting a new torque converter with a higher stall and I am seeing different size converters(12" and 9.5" I think) and 27 or 30 spline counts. I have a 200-4r transmission and it is mated to my 73 sbc 406. Any help would be appreciated. Thanks.

 

[jrm81bu]

The 2004r should be 27. The early 700r4 was 27 then switched to 30.

 

[455'ed80Regal]

They came with 27 spline as originally installed in vehicles.

 

[crucial118]

Cool. Thanks guys. Now why would one want a smaller diameter torque converter?

 

[-83MONTESS-]

Cool. Thanks guys. Now why would one want a smaller diameter torque converter?

Less weight mainly. I really wouldnt worry about it on a street car. It used to be the larger the torque converter's diameter, the more torque it "absorbs". Because of this a larger converter will usually have lower stall speed than a smaller-diameter converter but with the different fin designs of today's converters the size really doesnt mean as much as it did.

 

[crucial118]

Thanks 83montess.

 

[crucial118]

I found this...http://www.ebay.com/gds/The-Right-Stall ... 7675.m2468

 

[beeterolds]

Sup guys/gals? I am thinking of getting a new torque converter with a higher stall and I am seeing different size converters(12" and 9.5" I think) and 27 or 30 spline counts. I have a 200-4r transmission and it is mated to my 73 sbc 406. Any help would be appreciated. Thanks.

Not enough!

As much as I am fond of the Th2004r Im waiting to bust my input shaft with my LS motor Lol

All 200s had the 27 spline... they interchanged with with early 700s.. the later 700s got 30...

 

[TexasT]

I'm thinking you will bust a forward drum shaft long before you break an input shaft on a 2004r. or if the unit hasn't been upgraded with a hardened stator shaft and sun shell one of those items will fail first.

What do you plan to replace it with and just how much power are you planning with this LSx?

 

[olds307 and 403]

What does your current converter flash at? A lot of converters at rated at very low torque output, your car would put out much higher and therefore stall much higher. I need an upgrade too and will probably get one from CK performance. I know a guy with a similar combo to what I am building and will go similar in the stall department.