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Old 03-14-2013, 06:17 PM   #1
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Default 6l90e trans

I have an 84 hurst olds, and I recently purchased an ls3 out of a 2012 corvette to drop in it. It came with l690e transmission out of a silverado. This monster transmission isn't about to fit into the tunnel, and I really don't want to cut up the car. I've heard an engine like this putting out 430hp will eat most other tranny's for breakfast.

I don't know enough about this...are there any other smaller transmissions that will fit that can be rebuilt/beefed up enough to handle the power??

Thanks in advance.
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Old 03-15-2013, 07:56 AM   #2
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the corvette unit is designed to be at the rear with a torque tube couple options build your 200r4 there strong units built correctly or a 4l60e can be made to handle it and easy to swap or a 6l80 from a camaro or 2wd truck
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Old 03-15-2013, 09:45 AM   #3
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A well built 4L60E from one of the sponsors (Performabuilt, FLT, RPM, Jake's Performance) can handle 500HP with no problem. A stock one will not handle it for long. If your budge allows $2000-$2500 you have many choices.
If you plan on a adder (turbo, supercharger, Nitrous) which would boost you well past 600HP, you may want to consider a 4L80E.
If your budget is tight, you might consider a TH400 as even a cheap stock rebuild will easily handle 500+HP. Just no overdrive.

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Old 03-15-2013, 12:30 PM   #4
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Planning on boosting? Nitrous? If not then a 60e built by one of the sponsors here will be more than enough as mentioned above.
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Old 03-15-2013, 03:45 PM   #5
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No plans to boost/nitrous. I've heard good things about the beefy 6l90e but I need something that fits already. Thanks for the replies.

Anyone know an estimated value for a 6l90e?
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Old 03-18-2013, 12:21 AM   #6
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the 4l60 is a good choice then
plus u can use your lighting rods with a very little mods
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Old 03-18-2013, 11:07 AM   #7
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Quote:
Originally Posted by sda84ho View Post
No plans to boost/nitrous. I've heard good things about the beefy 6l90e but I need something that fits already. Thanks for the replies.

Anyone know an estimated value for a 6l90e?
They arent cheap thats all I can say. lol
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Old 03-18-2013, 12:42 PM   #8
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On ebay today, there's a 6l90e out of a 2010 Silverado with 81,000 miles with a "Buy it now" price of $1100. "Buy it now" prices tend to be a bit high.

Detroit Craigslist has a similar one with 61,000 miles with transfer case for $900. Michigan prices are often lower than elsewhere.
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Old 03-21-2013, 04:04 PM   #9
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Thanks. I appreciate everyones input.
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Old 03-21-2013, 04:04 PM
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