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What gears??

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Old Mar 1, 2012 | 10:39 AM
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Default What gears??

I have a Twin turbo 427 LSX looking to make 1200rwhp.... TH400, 9in rearend with 3.70 gears right now with a 28" tall tire... What gears should I be running
3.23s? 3.42? 3.10? Im lost!!

Last edited by TT427LSX; Mar 1, 2012 at 10:52 AM.
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Old Mar 1, 2012 | 10:41 AM
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3.07 or something close to that, maybe a tad numerically higher.

What is the stall speed of your converter, turbo size, intake style and cam specifications?
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Old Mar 1, 2012 | 10:45 AM
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Originally Posted by Fbodyjunkie06
3.07 or something close to that, maybe a tad numerically higher.

What is the stall speed of your converter, turbo size, intake style and cam specifications?
Thanks for info... Its a 3500 stall, twin Precision 6766, FAST 102 and I don't have cam specs as of yet..
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Old Mar 1, 2012 | 10:46 AM
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Originally Posted by TT427LSX
Thanks for info... Its a 3500 stall, twin Precision 6766, FAST 102 and I don't have cam specs as of yet..
What are you planning on turning it too rpm wise?
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Old Mar 1, 2012 | 10:48 AM
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Originally Posted by Fbodyjunkie06
What are you planning on turning it too rpm wise?
7000-7200 Max
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Old Mar 1, 2012 | 10:54 AM
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Built a TT427 GTO for a guy. Went with 3.25's. He is happy with it.

It was 6765's, 4L80E, PY3400, 26" tall tire, Fast 102, 228/232 cam.
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