T-56 flywheel for a 2 pice rear main
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Senior Member

Joined: May 2001
Posts: 698
Likes: 1
From: Houston TX
Car: 84 Z-28 Camaro, 2022 2500 silverado
Engine: 383
Transmission: T-56
Axle/Gears: richmond 3.73, eaton posi
T-56 flywheel for a 2 pice rear main
anybody know where I can get a T-56 flywheel for a 2 pice rear main seal engine?, and how much would it cost, money is a big issue for me, I'm enlisted and dont make much?
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Joined: Oct 2000
Posts: 3,163
Likes: 778
From: Park City, UT
Car: '92 Corvette, '89 1/2-a-'Vette
Engine: LT1, L400
Transmission: ZF6, T5
Axle/Gears: 3.45, 3.31
Machine work
Take the T-56 Fly wheel to a machine shop and have them perform the following:
*Zero balance the flywheel
*Bore out the inside diameter of the flywheel flange to fit over the 2 pc rear main seal crank centering flange
*drill new mounting bolt holes in the flywhell flange that correspond w/the 2 pc crank.
That's it. Should cost around $50-$70 bux.
*Zero balance the flywheel
*Bore out the inside diameter of the flywheel flange to fit over the 2 pc rear main seal crank centering flange
*drill new mounting bolt holes in the flywhell flange that correspond w/the 2 pc crank.
That's it. Should cost around $50-$70 bux.
Thread Starter
Senior Member

Joined: May 2001
Posts: 698
Likes: 1
From: Houston TX
Car: 84 Z-28 Camaro, 2022 2500 silverado
Engine: 383
Transmission: T-56
Axle/Gears: richmond 3.73, eaton posi
woulden't drilling the extra holes weaken the flywheel? bigger cam, nitrous, and a supercharger are mods I plan on doing as I save the maney for them
Supreme Member




Joined: Oct 2000
Posts: 3,163
Likes: 778
From: Park City, UT
Car: '92 Corvette, '89 1/2-a-'Vette
Engine: LT1, L400
Transmission: ZF6, T5
Axle/Gears: 3.45, 3.31
No
Drill the new bolt holes staggered to the old ones -not directly outside the old ones.
I did what I said above to my own car. Even though I didn't have blower and nitrous, I did drag race it every friday night for two summers plus daily driving and never had a problem. The same flywheel now resides behind a 400 horse 350 in my friend '86 Camaro.
You asked for a cheap alternative to buying a new $300+ flywheel and I gave you one. Some times you have to take calclated risks when you want to "engineer" your own system. I did, and it worked out fine for me, so I shared it w/you. Take it or leave it I guess.
I did what I said above to my own car. Even though I didn't have blower and nitrous, I did drag race it every friday night for two summers plus daily driving and never had a problem. The same flywheel now resides behind a 400 horse 350 in my friend '86 Camaro.
You asked for a cheap alternative to buying a new $300+ flywheel and I gave you one. Some times you have to take calclated risks when you want to "engineer" your own system. I did, and it worked out fine for me, so I shared it w/you. Take it or leave it I guess.
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Joined: Oct 2000
Posts: 3,163
Likes: 778
From: Park City, UT
Car: '92 Corvette, '89 1/2-a-'Vette
Engine: LT1, L400
Transmission: ZF6, T5
Axle/Gears: 3.45, 3.31
Wow... hurting.
Originally posted by black84-6spdz28
are you sure that using the one piece flywheel will actually work?
are you sure that using the one piece flywheel will actually work?
Originally posted by Tom 400 CFI
I did what I said above to my own car......I did, and it worked out fine for me, so I shared it w/you
I did what I said above to my own car......I did, and it worked out fine for me, so I shared it w/you
Originally posted by black84-6spdz28
the flywheel i got from center force is about 2 inches thick compared to the thin stockers
the flywheel i got from center force is about 2 inches thick compared to the thin stockers
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