C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

6 speed trans!

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Old Jan 29, 2003 | 11:52 AM
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Default 6 speed trans!

Can 6 speed trans from C5 ( LS1) fit 1990 L98???
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Old Jan 29, 2003 | 12:05 PM
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Default Re: 6 speed trans! (Sliding)

No way. C5s have transaxles in the back of the car. C4s have transmissions in the front. :yesnod:
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Old Jan 29, 2003 | 01:13 PM
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Default Re: 6 speed trans! (Sliding)

also:

Pre-97 Six speeds (those in C4's) are ZF and post 96's (those in C5's) are Borg-Warners.
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Old Jan 29, 2003 | 02:42 PM
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Default Re: 6 speed trans! (Sliding)

I have opportunity to buy C5 LS1 for very little money ( car is trashed, but engine and trans are O.K. ).

Is iz possible to install engine and trans into C4 ?

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Old Jan 29, 2003 | 03:23 PM
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Default Re: 6 speed trans! (Sliding)

While it may be possible, it's probably not worth the hassle or expense. Why not buy the car, part it out and use the money to buy a LT-4 (or a 383) & ZF for the C4.

cheers :seeya
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Old Jan 29, 2003 | 03:55 PM
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Default Re: 6 speed trans! (sraft)

While it may be possible, it's probably not worth the hassle or expense. Why not buy the car, part it out and use the money to buy a LT-4 (or a 383) & ZF for the C4.

cheers :seeya
I thought of that but it would be hard to sell parts in Croatia because
there are 2-3 C5 vettes here.
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Old Jan 29, 2003 | 05:53 PM
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Default Re: 6 speed trans! (Sliding)

Yes, it'll bolt up. Even a 700R4 will bolt to the LS engines.
The ZF will fit, the camaro had the T56. The ZF and T56 use the same flywheel and pressure plate.

Marck
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Old Jan 29, 2003 | 06:19 PM
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Default Re: 6 speed trans! (sraft)

Anything is possible with enough time and money. So if you have a lot of either then go for it.

Can you put a C5 tranny in a C4? Easily? No. But nothing's impossible. :)
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Old Jan 30, 2003 | 12:37 AM
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Default Re: 6 speed trans! (Twin_Turbo)

My understanding is that the ZF will NOT bolt up to the LS1s because I believe the LS1s have a different bellhousing bolt pattern than the Gen 1 and Gen 2 SBCs, and there aren't any LS1 bellhousings that have the ZF bolt pattern on them...at least this is my understanding.

The only way that I am aware of that you could install the LS1/T56 combo in your car is to use a Camaro T56 tailshaft section and either fabricate a tranny crossmember or a bracket (or new custom tailshaft housing) which will allow the trans to be bolted to the stock torque arm. I have seen the latter done, but it wasn't cheap.
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Old Jan 30, 2003 | 11:41 AM
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Default Re: 6 speed trans! (CorvetteZ51Racer)

I think I'll give up on this. :sad:
If I lived in US maybe I would go for it but here is very hard to find any
parts and it looks that I would need a lot of it.

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Old Jan 30, 2003 | 12:02 PM
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Default Re: 6 speed trans! (Sliding)

If you are contemplating purchasing a ZF 6 speed and converitng your present set up you might want to visit this website.

http://www.zfdoc.com/

Good luck. Bob
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Old Jan 30, 2003 | 12:14 PM
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Default Re: 6 speed trans! (REW89)

Thanks REW 89.
There are some useful infos there.
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