flywheel swap, will it work?
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Junior Member
Joined: Jan 2004
Posts: 19
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flywheel swap, will it work?
I am swaping my 90rs T-5 into my 85 z-28 that blew its 700r4. I need to know if i will have to purchase a new flywheel, (will it bolt up ) or can i just use the one from the 90? I would like to know because i have a limited time to get this done and would like to have all the parts ready to go, and just put it all together at once. Although i know that nothing ever goes to plan! lol
thanks for you help
john
thanks for you help
john
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Joined: Nov 2002
Posts: 1,132
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From: Grand Island, NY
Car: 1990 Formula
Engine: 305 TPI
Transmission: WC T5
If your 85 is a two piece rear main seal (original engine) Yes you will need a different flywheel. The one on the 90 has a counterweight on it that the two piece will not + the bolt pattern is different.
Supreme Member
Joined: Dec 2003
Posts: 2,391
Likes: 1
From: Newark, DE
Car: '86 Camaro, '02 WRX, '87 K5, '67
Engine: 350 TPI, 2.0turbo, 383 in the works, 289-4BBL, 232, A-head 4-cylinder
Transmission: T56, 5-speed, 700R4, C4, T176, semi-auto 2-speed
Axle/Gears: 3.73, 3.90, 4.88, 3.55, 3.54, 7.00
You need a 153 tooth flywheel for the '85 motor, which I believe will be a two piece rear main seal. Verify this for yourself though. The flywheel will need to be a neutral balance.
Supreme Member
Joined: Dec 2003
Posts: 2,391
Likes: 1
From: Newark, DE
Car: '86 Camaro, '02 WRX, '87 K5, '67
Engine: 350 TPI, 2.0turbo, 383 in the works, 289-4BBL, 232, A-head 4-cylinder
Transmission: T56, 5-speed, 700R4, C4, T176, semi-auto 2-speed
Axle/Gears: 3.73, 3.90, 4.88, 3.55, 3.54, 7.00
Hey Nova, is that a '73 or '74 model car. I have the remnants of a '74 SS. The car was too far gone to restore (massive rust). Got good money for the parts on eBay though.
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iTrader: (1)
Joined: Nov 2002
Posts: 1,132
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From: Grand Island, NY
Car: 1990 Formula
Engine: 305 TPI
Transmission: WC T5
Originally posted by TKOPerformance
Hey Nova, is that a '73 or '74 model car. I have the remnants of a '74 SS. The car was too far gone to restore (massive rust). Got good money for the parts on eBay though.
Hey Nova, is that a '73 or '74 model car. I have the remnants of a '74 SS. The car was too far gone to restore (massive rust). Got good money for the parts on eBay though.
really no diffenences between the two except 74 got stickers instead of metal emblems Supreme Member
Joined: Dec 2003
Posts: 2,391
Likes: 1
From: Newark, DE
Car: '86 Camaro, '02 WRX, '87 K5, '67
Engine: 350 TPI, 2.0turbo, 383 in the works, 289-4BBL, 232, A-head 4-cylinder
Transmission: T56, 5-speed, 700R4, C4, T176, semi-auto 2-speed
Axle/Gears: 3.73, 3.90, 4.88, 3.55, 3.54, 7.00
Duh, I just noticed it in your sig.
What motor/trans/rear you running? My car was a 305/M21 Muncie/12-bolt posi with 3.31s. There are a few little differences, but by and large the two years are very similar.
What motor/trans/rear you running? My car was a 305/M21 Muncie/12-bolt posi with 3.31s. There are a few little differences, but by and large the two years are very similar.
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