Super T10 with Borg Warner overdrive(4 speed with an electric OD)
No such animal, unless you make it yourself. The B-W overdrive was only used on 3 speeds.
Also, you no to the T-5, but you suggest the Tremac and Keislers. They are all the same transmission, only difference is the name and perhaps some internal improvements by the later manufacturers.
I have heard about, but have not personally done the t10 with OD. I believe the 3 speed OD will bolt up to it, but I have no first hand knowledge.
I understand the tremec and kiesler are t5 based transmissions. They are advertised for 500 and 600 horses. A stock gm t5 would be limited to around 300 hp.
I believe the M21 and M22 to be great transmissions. I didn't reccomend them because of the 3.73 gears, although the truck would motor down the freeway ok, it might be loud. I would think those transmissions would perform well for the 1/4 mile with the 3.73 gears. My choice would be 3.07:1 gears to 3.42 gears without OD.
Again I am not paying for these conversions. I was listing possible suspects so semperfink can do some more research.
Personally, I am a huge fan of the NV4500 and have put one of those behind a well built pontiac 389 in my 59. I also plan to use one behind a well built 302 6 cylinder in my 1940. I had to make my own adapter plate for the 1940, well I guess I chose to make the adapter... could have swapped out bellhousings and used an AA adapter. I am getting off topic here.
