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Discussion Starter #1
I was wondering what is the most modern automatic transmission that will bolt up to a sb 350.

I was hoping for a 6spd auto. Has anyone done something similar.

I have a 69 drop top.
 

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LOL, you said Modern and BoltUp in the same paragraph.

Boltup = TH350, TH400, TH2004R, TH700R
Modern = 4L60E, 4L80E and whatever is in the new vettes

Boltup is in the eye of the wrench holder

What do you want to do, what do you want to spend?
 

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I've seen a post from someone putting a 4L80e in a Vette somewhere. The physical size of the tranny was going to require some floorpan mods. I'm sorry I don't recall where it was I saw it. Is there a 6 speed auto that would have a chance of fitting? I've got an Allison 5 speed in my truck, and that thing is HUGE- especially when you start looking at the tunnel on a C3. And they do come in a 6 speed. The 4L80e has a lot of torque capacity, AND a lockup convertor, but they're pretty heavy too.

:cheers:
 

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Soa 700r(4) will bolt in to a c3, say a 79 model without any mods??? Same drive shaft???

Thanks
 

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Discussion Starter #5
I was thinking of mating to the engine eng with an adaptor or the like in the worse case.

On the other end I would cut/weld the shaft to fit.

The transmission supports and stuff not a big deal.

My budget was around 2500$

On a side note it would be great if I could use the same transmission on a future LS3 crate I had planned down the road
http://store.summitracing.com/partdetail.asp?part=NAL%2D17802134&autoview=sku.

I'm pretty sure this is wishfull thinking. I have a 700R I may rebuild as a backup plan. I was wanting a lil better fuel milage for trips. I am now just getting the beast road worthy but am eyeing future improvements.

Most of the tricky wrench work is done by my step-dad and I'm there for parts funding and easy stuff.
 

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A $2500 budget should be an easy fit for a bumped up 700.
Ebay can get you the rebuild kit for around $250
Shift kit annother $150 or so
SOme other hot rod parts for the inside annother couple hundred
Torq Converter $200
you got fab skills and tools, custom crossmember ~$50
Get the drive shaft cut to fit and balanced, don't know the $ for that.
you can easily do this part for under $1000
Tranny not that hard to rebuild, I just did mine with a book and a video.
 
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