700r4

finally picking up a 700r4 core this weekend...looking for rebuild kits...my strategy for transmissions and rearends if build them as strong as possible so you dont have to worry about breaking them...anyone know of any good kits? or kits they have used and are happy with?

looking at this one right here so far

http://racetransmissions.com/store/product_info.php/cPath/203_204_206_338/products_id/571

i also want to add i dont know much about transmissions, and this is going to be a learning experience for me.

The early 700 had durability problems, so here's hoping you get a later one, like '87-up. There is a break-in procedure for the band in there, from what I'm told, and if the old band is in good shape, you may want to use it. I'm just passing on what a trans guy told me. If you do the re-build yourself, get a video on the re-build, as well as a manual. The Monster trans kit looks like a good one, with heavy duty parts etc.

700s are very picky and kind of difficult to rebuild, as compared to 400s and 350s. I recommend getting a tool to install and remove the pump, as if you install or remove it wrong, might as well just buy another trans. Also there is a piston in the very bottom of the case that needs to be removed and new seals installed, I recommended finding the tool to remove and install it, as its easy to bend and then you have to buy another.
Im not sure about rebuilding it as for strength, I just did a stock rebuild on a few of them and did a few mods as stated in the rebuild manual.

Now a turbo 400, I can pretty much tell everything that needs to be modded in it for strength.

pila wrote:The early 700 had durability problems, so here's hoping you get a later one, like '87-up. There is a break-in procedure for the band in there, from what I'm told, and if the old band is in good shape, you may want to use it. I'm just passing on what a trans guy told me. If you do the re-build yourself, get a video on the re-build, as well as a manual. The Monster trans kit looks like a good one, with heavy duty parts etc.

my mistake, i probably should have mentioned that i did know that 87- are better, the core im getting is out of a 93 z28, i also bought a manual on the rebuild from "performance how-to" my girlfriends dad has all the special tools you need for the build.

i appreciate the advice on the band, and do you like any of the other kits out there or know of any that you like?

BlackChevelleSS wrote:700s are very picky and kind of difficult to rebuild, as compared to 400s and 350s. I recommend getting a tool to install and remove the pump, as if you install or remove it wrong, might as well just buy another trans. Also there is a piston in the very bottom of the case that needs to be removed and new seals installed, I recommended finding the tool to remove and install it, as its easy to bend and then you have to buy another.
Im not sure about rebuilding it as for strength, I just did a stock rebuild on a few of them and did a few mods as stated in the rebuild manual.

Now a turbo 400, I can pretty much tell everything that needs to be modded in it for strength.

good stuff, thanks for the info...my girlfriends dad has any special tools that we'll be needing for the job, as far as the rebuilds, the parts between stock and performance should be the same right? except for stronger? i guess what im asking is, is there anything im going to be putting in here as far as "extra" parts?

im guessing the basket is pretty much a replacement part, although Ive never replaced it.

BlackChevelleSS wrote:im guessing the basket is pretty much a replacement part, although Ive never replaced it.

what does it do?

Its the input shaft and drum

Make sure you definitely get an upgraded sun shell, at the very least. It gives you 2nd gear, and the factory didn't use very strong strong sun shells. From what I've seen and heard, the Monster rebuild kit gives you just about everything you need for a good rebuild.

I see that "Monster" has three stages of rebuilt 700R4's, like 1,2, & 3. You might call them and ask what comparable stage you will have with the kit you listed in the link. How much power are you gonna have on that trans ? I see level 2 is 500 HP, and not likely you would need any more beef than that, but knowing how the kit matches up to their re-builds would be good to know.

pila wrote:I see that "Monster" has three stages of rebuilt 700R4's, like 1,2, & 3. You might call them and ask what comparable stage you will have with the kit you listed in the link. How much power are you gonna have on that trans ? I see level 2 is 500 HP, and not likely you would need any more beef than that, but knowing how the kit matches up to their re-builds would be good to know.

yeah that might not be bad at all..obviously going to run a trans cooler as well, so that will help

A cooler is always a good idea, since heat is the enemy of auto transmissions, and if using a higher stall converter, there may be a bit more heat.

IndyG3 wrote:Make sure you definitely get an upgraded sun shell, at the very least. It gives you 2nd gear, and the factory didn't use very strong strong sun shells. From what I've seen and heard, the Monster rebuild kit gives you just about everything you need for a good rebuild.

Monster Transmission is who we go to for performance rebuild and replacement parts, as far as 700r4's go they are top of the game IMO.

pila wrote:A cooler is always a good idea, since heat is the enemy of auto transmissions, and if using a higher stall converter, there may be a bit more heat.

definitely will also need a stall converter, when i did the top end i ran way too big of a cam for the stock converter and the thing idles at like 100 rpm in gear

You got it to idle at 100 rpm?

How bad does it surge when in gear? That's the real question.