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~~Hello

I need a good 4r70w to fit my 351W. WE race in a Oval track car. The plan is to use no shift computer. We need 2nd. & reverse + maybe 1st.

I know it must be from a 3.8

The second Question is what Torque Converter must I use to get about 6500+ RPM? What weight Flex plate? the 28oz.?

Paul
 

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No stock converter will fit that 351 and handle 6500 rpm. I would get the latest
4r70w you can find. A 4.2 truck will work as well as a 3.8 mustang.
Alan
 

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They aren't cheap. If you don't plan on using lockup we could do something different and shed some weight and cost. I generally wouldn't suggest that because I feel that lockup is one of the best parts of these transmissions.
Alan
 
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