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Old 07-09-2009, 08:49 PM   #28
gregbr
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Join Date: Mar 2002
Location: Rock Hill, SC USA
Posts: 1,214
Re: What gear to use with the 402/th400??

Don't understand cam specs or stalls at all. How much does the th350 converter stall compared to a th400. The trans builder told me to use the th350 converter in my th400 for less fluid usage and slightly more stall. Can you explain what my cam is and how the stall would help?

Is going from a 3.07 to a 3.42 rear ratio a big change? It doesn't sound like much as compared to changing from a 3.07 to a 3.73.
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67 Chevy, Small back glass, Factory 4WD, Factory Shortbed, Factory V8, Lifted 4"
70 GMC Sierra Grande, Factory Shortbed, Factory 402/400 turbo, Super Custom Interior. Numbers matching with SPID & Build Sheet. 68K Original Miles. Restored 2010

70 GMC Restoration Pictures
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