Transmissions and Drivetrain Need help with your trans? Problems with your axle?

454 to LT-1 T-56

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Old 08-07-2015, 12:00 PM
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Car: 1991 Camaro RS
Engine: 454
Transmission: t56
454 to LT-1 T-56

I have a lt-1 style t-56 trans that is currently running behind a 94 350. My question is if I can use the 1pc lt-1 neutral balance flywheel combined with a 454 porkchop weight on my 1999 454?

Thanks
Old 08-07-2015, 06:20 PM
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jmd
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Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
Re: 454 to LT-1 T-56

It's a different bolt pattern at the crank.

Also, the pull clutch is sensitive to too-thick clutch assemblies including things like taller flywheels or flywheels made taller with sandwiched weights. You would probably find a 0.100" thick weight to prevent proper clutch release.

Centerforce adaptive flywheel is the simplest, based on parts you probably already have.
Old 08-07-2015, 08:19 PM
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Car: 1991 Camaro RS
Engine: 454
Transmission: t56
Re: 454 to LT-1 T-56

What's the part number for that flywheel? I can't find it on summit or centerforce's website
Old 08-07-2015, 08:46 PM
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jmd
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Join Date: Jul 2000
Location: Aridzona
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Car: `86 SS / `87 SS
Engine: L69 w/ TPI on top / 305 4bbl
Transmission: `95 T56 \ `88 200-4R
Re: 454 to LT-1 T-56

Call them. They, or Spec make one to suit the unique 454 balance, old bolt pattern, and 153 tooth ring / starter setup.
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