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Old 05-07-2015, 11:36 AM   #1
boycefromdallas
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how to mate a manual transmission from v6 to an LS V8

Hello,
I am doing a motor tranny swap and the average cost of a T-56 is out of my budget considering they are around $2500. Determined to get this project rolling, so trying to find out if info from a somewhat reliable source, I've heard is true and that is :
by using a manual transmission (5 speed from a Chevy v6 Camaro) for example all I have to do is use the bell housing from a Chevy Astro van or Chevy s10 pickup does anybody know or have experience with this actually working?
I am using the engine from a 2007 Chevrolet Avalanche LTZ 4WD . Its the LS based v8 aka - L93. Thanks for any feedback
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Old 05-07-2015, 12:50 PM   #2
Az Geezer
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Re: how to mate a manual transmission from v6 to an LS V8

I'm certainly no expert, but I've been lead to believe that transmissions from 6 cylinder cars are too weak to hold up to horsepower and torque of LS motors. Carefully research this before you go investing money.............
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Old 05-07-2015, 06:06 PM   #3
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Re: how to mate a manual transmission from v6 to an LS V8

Sorry to be the bearer of bad news but Bill's right. You'd have to drive it like a Baby. You wouldn't want to bust the gears when at high RPM of the Engine. Then you may hurt the engine due to over-revving.

Good luck with your project.. If you get a chance, post some pictures.

Ron From Nevada.
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Old 05-08-2015, 09:33 AM   #4
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Thumbs down Bad Idea

Welcome to the forum!

I would agree with the above comments. A 6 cylinder trans. simply isn't designed for that much HP. You'll also find that the gear ratio's from a V-6 trans. often aren't ideal for a V-8.

Check out this link: using a v6 5 speed on a 350 v8

"....... a T-56 is a good choice. A V8 T5 is a better choice than a 6-cyl T-5; but they're still EXTREMELTY fragile, if you have any power, and especially if you have any traction. I tore up my first 4 or 5 T-5s with the stock 305 in my car. It only got worse after I put a bigger motor in it (bigger than a 350, or than a 383 for that matter). A T-56 COMPLETELY cured that, I haven't tore it up even a single time yet."

Last edited by Lakeroadster; 05-08-2015 at 09:40 AM.
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