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Old 11-15-2004, 05:13 PM
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Question turbo 400 capability

I have a naturally aspirated 496 big block chevy running on alcohol making 1257 horsepower at the rear wheels according to some calculations. I had a 3-speed lenco, but want something legal for a street class. I've heard a well built turbo 400 short-tail will hold up to 1500...My question: Is that statement true, and what internal parts do I need to replace inside the trans? Can I use any stock parts??
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Old 11-15-2004, 08:58 PM
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Cool

Special 300M input shaft and remachined forward drum. Requires a converter built for the application with a bushing inside the converter for the turbine.


A billet steel drive hub inside the forward drum.

A wider sprag race for 2nd gear with early design sprag.... not the spring & roller design

7 or 8 frictions in direct and forward clutch packs. 4 frictions in second gear clutch pack... alto red work well

Full manual valve body with 220 psi main line presure.

Straight cut gears in planetarys will save some hp from side loading of the gears
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Old 11-15-2004, 09:12 PM
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Thanks for all of the info, hopefully I'll be able to find everything without any problems. I think I'll go to Coan for most of the components.
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