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Need some advice guys! T56 or 6L90 in Pro Touring Chevelle

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Old 03-26-2022 | 12:05 PM
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Default Need some advice guys! T56 or 6L90 in Pro Touring Chevelle

Building a 66 chevelle. 427 LS Noonan billet block with 4.5L whipple(very likely).
Can not decide on transmission to save my life.
Which are you going for on a build like this?
Car is an original 4spd SS


Old 03-26-2022 | 02:09 PM
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Whats the HP goal?
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Old 03-26-2022 | 02:45 PM
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Would you like to shift gears or not in the car? That is a question that only you can answer.. Going to be a sweet ride regardless of your decision..

Save the manuals!
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Old 03-26-2022 | 05:29 PM
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Originally Posted by theunderlord
Whats the HP goal?
12-1400 on e85
Old 03-26-2022 | 05:35 PM
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Originally Posted by 01CamaroSSTx
Would you like to shift gears or not in the car? That is a question that only you can answer.. Going to be a sweet ride regardless of your decision..

Save the manuals!
lol..yes. I don't mind it at all. But I'll be honest. I've never had a car with @1400hp. My last chevelle was a 68' with 496 procharged BBC, it made 950.. and when I would beat it WOT(every time I drove it) I was pretty happy to have both hands on the wheel.

Keep in mind that was stock a-arms and steering box, and just a bunch of hotchkis stuff ..i.e..sway bars springs shocks. So i'm sure this will handle a lot better.

But part of me wants to make it drivable for the wife if we were to take it on the Power Tour or some **** lol

Anyone know of a bad *** 6L90e builder that has paddle shifters? Maybe that can be an alternative
Old 03-26-2022 | 10:47 PM
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Originally Posted by calponte
Car is an original 4spd SS
You already answered your own question here...
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Old 03-26-2022 | 11:24 PM
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I wish i have come to a conclusion. But I will literally not pull the trigger on one or the other lol.
If i can find the perfect auto tho..maybe I can at least start considering it
Old 03-27-2022 | 12:00 AM
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How about sequential shifted T56? Or! paddle shifted 10L90?



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Old 03-27-2022 | 07:28 AM
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Whichever will hold up to all that torque! :-)
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Old 03-27-2022 | 08:26 AM
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Converting a manual to auto is a cardinal sin 😳 when hot rodding in my personal opinion. Magnum would be my choice.

However, its your car so it should be what you like driving.

Best wishes with build (BWWB)
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Old 03-27-2022 | 11:34 PM
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Originally Posted by 99 Black Bird T/A
Converting a manual to auto is a cardinal sin 😳 when hot rodding in my personal opinion.

Amen brutha'.
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Old 03-28-2022 | 01:00 PM
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Originally Posted by theunderlord
How about sequential shifted T56? Or! paddle shifted 10L90?
I want the 10L90 Personally, but realized you can't put it behind the LS platform unfortunately. And I fully thought about the 6XD sequential but would that really be practical if not WOT? lol
Old 03-28-2022 | 01:02 PM
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Originally Posted by 99 Black Bird T/A
Converting a manual to auto is a cardinal sin 😳 when hot rodding in my personal opinion. Magnum would be my choice.

However, its your car so it should be what you like driving.

Best wishes with build (BWWB)
I agree with this also..and therein lies my battle. I do want to keep it a manual do to that fact. But it's a full restomod..would it actually matter or take from it's value?
Old 03-28-2022 | 01:51 PM
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Hard to say value wise, unless you're considering selling it in the very near future I wouldn't worry about value that much. I think people are going to be so focused on finding actual muscle cars from the 60-70's that are in good shape that what transmission they have in them is immaterial.

But, like was mentioned above, enthusiasts will always gravitate towards the manual.
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Old 03-28-2022 | 06:57 PM
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Got any links to either of these options that could handle this type of power? I haven't seen any mfr have anything much over something rated for 700lbft



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