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

Automatic to 6 speed conversion, info wanted

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Old Jun 11, 2002 | 11:13 PM
  #1  
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Default Automatic to 6 speed conversion, info wanted

Can't stand the search function, and couldn't find what I was looking for, but has anyone here switched from the 700r4 to a zf6 in an early c4? What all was involved including modifications to the car and price? Yes, I know it would be cheaper to just buy a stick shift car, but I've got too much time and money in this one already to do that.
Thanks
Joe
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Old Jun 11, 2002 | 11:16 PM
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Default Re: Automatic to 6 speed conversion, info wanted (SlowJoe)

Well... time to start melting the old Master Card...

expect 1500.00 to 2000.00 for the box, used... and you will need the bell housing... and clutch... and the transmission tunnel needs to be modified... and the pedals.

I would look closely at the Richmond 6spd...

either way, your not gonna have much change from 4000.00...
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Old Jun 11, 2002 | 11:20 PM
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Default Re: Automatic to 6 speed conversion, info wanted (bogus)

Not bad so far. Anyone seen a write up on the whole process?
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Old Jun 11, 2002 | 11:21 PM
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Default Re: Automatic to 6 speed conversion, info wanted (SlowJoe)

Another thing you might want to consider is the th400/Gear Vendors conversion I just completed. I love it. It cost about $4000. But now if I do manage to wreck my th400 (and most people seem to think it is awful hard to do that) a rebuild is only about $500. It is a way cool way to autocross too. You can shift so fast by just pushing the button to engage the overdrive in any gear if you want just a slightly higher (or lower if you are already in overdrive) gear. I have a page on my web site with some details on my conversion.
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Old Jun 11, 2002 | 11:28 PM
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Default Re: Automatic to 6 speed conversion, info wanted (Bob86ZZ4)

Looks like a pretty sweet setup, but I really miss having a clutch. I've beaten a lot of sticks with my auto, but it's just more fun for me to drive a manual.
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Old Jun 11, 2002 | 11:31 PM
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Default Re: Automatic to 6 speed conversion, info wanted (SlowJoe)

Mine is a manual. Valve body that is. I have to do all my shifts manually but there is no clutch to gum up the works, hahahaha. I know what you mean. Clutches certainly are fun.
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Old Jun 12, 2002 | 07:11 AM
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Default Re: Automatic to 6 speed conversion, info wanted (SlowJoe)



Not bad so far. Anyone seen a write up on the whole process?
Sure have! Right here on this very Forum! :D

Do a Search for "tommelton". There were at least 3 main threads, with several sub-threads (like this one). *Lots* of good material, like how much to have ground off your Camaro LT1 flywheel, where to find adjustable fork pivots, etc. Invaluable info for gearheads! :yesnod:
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Old Jun 13, 2002 | 12:43 AM
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Default Re: Automatic to 6 speed conversion, info wanted (Rich B.)

Look at these previous posts where I responded about my conversion:
http://forums.corvetteforum.com/zerothread?id=256243 http://forums.corvetteforum.com/zerothread?id=266847 http://forums.corvetteforum.com/zerothread?id=247730

-Tom
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Old Jun 13, 2002 | 02:37 AM
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Default Re: Automatic to 6 speed conversion, info wanted (bogus)

either way, your not gonna have much change from 4000.00...
$4k is cheap compared to the other guys that did this a while ago.. they spent nearly $10k if i remember right.
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Old Jun 13, 2002 | 02:39 AM
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Default Re: Automatic to 6 speed conversion, info wanted (tommelton)

you make good use of the "copy" / "paste" functions :jester
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Old Jun 13, 2002 | 06:11 AM
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Default Re: Automatic to 6 speed conversion, info wanted (tommelton)

Thanks Tom. I'll start squirrelling away the parts for when (not if) this 700r4 decides to blow up.
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Old Jun 13, 2002 | 07:23 AM
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Default Re: Automatic to 6 speed conversion, info wanted (SlowJoe)

SloeJoe - Karshop may still have a ZF6 for sale on the C4 Parts for Sale section. I almost bought it as a spare...

If/when you get closer, let me know if you run into any problems. I may be able to assist due to the experience.

-Tom
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Old Jun 13, 2002 | 08:36 AM
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Default Re: Automatic to 6 speed conversion, info wanted (SlowJoe)

SlowJoe -

Who/where makes/did you get that rear spoiler??? Kinda looks like the spoiler off my '75 Trans Am...

I'm not sure if I like it on a Vette or not...But I'd sure like to know who distributes it if I do end up liking it... :crazy:
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Old Jun 13, 2002 | 10:13 AM
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Default Re: Automatic to 6 speed conversion, info wanted (Rich B.)

Good luck on the transformation. Let us know how deep you get....

:cheers:
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Old Jun 13, 2002 | 10:21 AM
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Default Re: Automatic to 6 speed conversion, info wanted (SlowJoe)

Whilst on the subject, is ther a way to make the OD clutch ( 86 700r4) lock up in 3rd ?
I thik this would be usfull when useing the car on tight roads
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Old Jun 13, 2002 | 10:58 AM
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Default Re: Automatic to 6 speed conversion, info wanted (The Hobbit)

I like that spoiler too. ...info please........thanks.....
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Old Jun 13, 2002 | 09:50 PM
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Default Re: Automatic to 6 speed conversion, info wanted (larryf)

I like that spoiler too. ...info please........thanks.....
Thanks. It was on the car when I bought it, but it seems to be an early Vanacor GTO kit. You can see it on their website, http://www.vanacorvette.com
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Old Jun 13, 2002 | 09:50 PM
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Default Re: Automatic to 6 speed conversion, info wanted (tommelton)

SloeJoe - Karshop may still have a ZF6 for sale on the C4 Parts for Sale section. I almost bought it as a spare...

If/when you get closer, let me know if you run into any problems. I may be able to assist due to the experience.

-Tom
Thanks Tom!
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