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Best Manual Transmission for a 500hp 350 TPI?

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Old 12-04-2019, 08:41 PM
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Car: Camaro
Engine: L98
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Best Manual Transmission for a 500hp 350 TPI?

I want to start swapping my car's transmission from a drag racing 700r4 that came with the car when I bought it to something manual. Whats a good transmission that could handle 500hp comfortably? It'd be cool if I could get one from a junkyard or online or something. It looks like a T56 is a favorite. Should I go with that or something else? Thanks!
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Old 12-04-2019, 09:16 PM
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Re: Best Manual Transmission for a 500hp 350 TPI?

There is always the Magnum F
Old 12-05-2019, 07:18 AM
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Car: 1986 IROC Z
Engine: 5.0 TPI
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Re: Best Manual Transmission for a 500hp 350 TPI?

Originally Posted by Jetlogan
I want to start swapping my car's transmission from a drag racing 700r4 that came with the car when I bought it to something manual. Whats a good transmission that could handle 500hp comfortably? It'd be cool if I could get one from a junkyard or online or something. It looks like a T56 is a favorite. Should I go with that or something else? Thanks!
I'm curious to hear more about a 500 hp TPI engine.

Last edited by ironwill; 12-05-2019 at 07:48 AM.
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Old 12-05-2019, 03:19 PM
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Car: 1991 Camaro Z28
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Re: Best Manual Transmission for a 500hp 350 TPI?

Originally Posted by ironwill
I'm curious to hear more about a 500 hp TPI engine.
Old 12-05-2019, 07:14 PM
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Car: 1989 Trans Am GTA
Engine: LT1, AFR 195cc, 231/239 LE cam.
Transmission: M28 T56
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Re: Best Manual Transmission for a 500hp 350 TPI?

Originally Posted by Jetlogan
I want to start swapping my car's transmission from a drag racing 700r4 that came with the car when I bought it to something manual. Whats a good transmission that could handle 500hp comfortably? It'd be cool if I could get one from a junkyard or online or something. It looks like a T56 is a favorite. Should I go with that or something else? Thanks!
T-56 is an easy swap in a third gen. Do you mean 500whp or 500 crank? As long as you aren't a monkey a T-56 will take 500hp at the crank without an issue on street tires. Slicks...etc all put increased stress on the driveline because they grab harder.

I'm making close to 500 crank right now with my GTA and the T-56 is happy as a clam.

Originally Posted by ironwill
I'm curious to hear more about a 500 hp TPI engine.
Originally Posted by cmiller2014

Put me down third for this question. 500hp TPI. Power Adder sure, but N/A? I wanna know what TPI other than the First is, or some other welded to hell and back base is going to make that.
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Old 12-06-2019, 12:04 PM
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Car: 1990 Pontiac Trans Am
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Re: Best Manual Transmission for a 500hp 350 TPI?

T56 for sure. Or a Tremec or Richmond 5-speed. Either one will cost big money.

We have 355 TPI in SoCal making 400 horsepower to the wheels. 500 HP at the crank is not impossible.
Old 12-06-2019, 12:41 PM
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Re: Best Manual Transmission for a 500hp 350 TPI?

*** shameless plug ***
I notice you're in Michigan. I have a 20K mile T56 for sale in Illinois.
https://www.thirdgen.org/forums/lsx-...6-6-speed.html
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