TC233

Left hip/knee is gone and not much they can do for at least a year. Even after surgery I will be screwed up for more than a few more months.

So its time, Automatic Transmission is needed. I am going to take the time to install an LS3 in my 63SWC at the same time so, the question is..... has anyone come across a new Auto Transmission that will fit without hacking the firewall. If not, whats the best option at the moment?

Thanks

LB66383

The 200-4R is the same size as a Powerglide or a TH-350 so it should fit without cutting up anything. It's a 4-spd overdrive so it would be nice on the highway. I'm not into the LS engines, so I can't tell you if it'd bolt to one of those blocks. I wouldn't doubt that somebody has done it and knows what parts are needed.

sub006

My next C2 trans will be a 2004R, original equipment on the stormin' mid-'90s turbo Buick Grand Nationals.

daz_au

I think I have read that the 4l60/65 fit tightly in the tunnel without mods... maybe. If thats true, something like this would make the project a lot easier....

http://www.chevrolet.com/performance...ruise-ls3.html

Randy G.

If this is it, you can save a couple grand $$ by buying the package from Summit Racing.

http://www.summitracing.com/parts/nal-cpsls34l65e

daz_au

I think you could probably do even better... the GM site is just recommended pricing. They recently had a $500 rebate on top, but it ended Dec '14. I think people where close to 10k on the package which is pretty good for what you get.

TC233

Thanks for all the responses, was laid up for the last few weeks so could not answer, I will google 4L65E and C2 and see if anyone has already did this conversion.

TC233

So this has grown somewhat since we last talked. I am now doing the SRiii route, 525HP LS3, 4L65E Stage/Level 4, so now I need assistance with a rear end. I see one person here used a Viper Rear End, Others Used newer Vette Rear Ends.

So, I am going to broach a subject which will cause some to cringe..

What about a Straight shaft K9 rear end? Good idea, bad idea , terrible idea, stupid idea, or brilliant?

Also for those knowing the 525HP LS3 what should I do for Gear ratios on the 4L65E and the rear end? John???

I think as a result of this I am going to have one dirty large pile of original 63 Corvette parts to sell. When I say dirty pile I mean I have spares to backup spares!!But I will not do that till I know this is the way I am going for sure.

TC233

Well I quickly eliminated solid shaft when I realized that I would have to gouge the driveshaft tunnel to allow for the movement.