700r4 vs 4l80e

[2wd_Sled_Puller]

The sponosor that gave me my 350 motor also hooked me up with a 700r4 transmission that has t-case with it. My question is which tranny would be the best to put behind the ol mighty 350. The 350 has a 4 barrel holly 750 on it along with a throttle body spacer Dual exhaust. And 35 inchs mudders. Which tranny will hold the best. Can i get away with the 700r4


Also i have heard there is something u can do to these manual trannys that will inhance the line pressure what is the secrete. If the 4l80e is the best choice will the manual VB out of the 700r4 go into my 4l80e. Please help someone.



Thanks Kurt

 

[Turbo Buick 6]

The 700r4 can be built to handel more than enough power. Heck a 2004r can be built to take 1000hp. I'm not super farmiliar with the 700 but I think that it is similar to the 200 and if that is the case you take out the pump and change it. I think you go from a 10 vane to a 13 vane. Put in a transgo shift kit....forget any other brand,. use some washers to shim the servo on the side of the tranny and install red altos and coleen steels. There are a few other things, but if you have a MVB for the 700 I would stick with that, they are quite salty to buy.

 

[2wd_Sled_Puller]

Ok. But will the 700rv manual vb work in a 4l80. And about all this transgo mod can u give me a estimate in what it would cost to build. Or hell maybe i can built my 4l80 and stick it in when the other starts to slip. I will have 2 trannys to play with. But any idea in priceing??

 

[2wd_Sled_Puller]

What about these items. are these what your talking about

http://cgi.ebay.com/ebaymotors/700-...hash=item200198519588&_trksid=p3286.m20.l1116


http://cgi.ebay.com/ebaymotors/ws/e...o=CRX&its=S%2BI%2BSS&itu=ISS%2BUCI%2BSI&otn=4

Also will i need a new converter or will my stock one work. Or hell can i put the 4l80 converter in it to save a few bucks

 

[The Neens]

Kurt, the 4L80E requires a stand-alone controller (expensive)...

http://tciauto.com/Products/Electronics/

 

[2wd_Sled_Puller]

And what in this picture do i shim. this is the only pump i can find i no its for a 4l80 but im hoping they are ballpark the same as far as pump wise. maybe u can save this pick and open it in paint shop to draw me arrows.

http://cgi.ebay.com/ebaymotors/NEW-...228565682QQcmdZViewItem?hash=item110228565682

 

[Turbo Buick 6]

The 4l80 is pretty much just a th400 with OD added, so I highly doubt that the VB's with interchange. I'm just pulling prices out of my head but I think a trans go is about $120, clutches andd steels are $300-$400, hardened stator was well under $100 last time I checked, I want to say less than $50. Can't give you an exact trice but for me to build a 200 with the best od the best was something like $3500-$4000, but that was rollerized which was something like $750. This is just parts. But the input shaft was $500 but you can get a hardened one for $250. Like I said is was the best parts I could get so it could be done for a lot less. It's nothing like building an Alli as far as price goes. Also I think that the price I gave for the tranny included a trans brake but not a MVB. This was about 18 months ago tho, so my memory could be a little rusty

 

[2wd_Sled_Puller]

holy batman almost 1,000 dollars. That 700r4 keeps looking better

 

[2wd_Sled_Puller]

The 4l80 is pretty much just a th400 with OD added, so I highly doubt that the VB's with interchange. I'm just pulling prices out of my head but I think a trans go is about $120, clutches andd steels are $300-$400, hardened stator was well under $100 last time I checked, I want to say less than $50. Can't give you an exact trice but for me to build a 200 with the best od the best was something like $3500-$4000, but that was rollerized which was something like $750. This is just parts. But the input shaft was $500 but you can get a hardened one for $250. Like I said is was the best parts I could get so it could be done for a lot less. It's nothing like building an Alli as far as price goes. Also I think that the price I gave for the tranny included a trans brake but not a MVB. This was about 18 months ago tho, so my memory could be a little rusty

Thanks for your feed back. So it would probley be better to sale the 4l80e and just use the money i make off it to built my 700r4. I am expecting the 350 how it sits now with the 4barrel and everything eles to hopefully make around 200 hp or better. Im not sure what they do from stock. But the only other thing that will be done to it is a cam and thats it. Maybe 250 hp or so. So is putting alto cluches really a need be. Will just a simple transgo be good enough for this ol mighty 350. And last question will the stock converter work or will i have to by another converter to hold up to this.


Thanks for all your help Paul and Chris

 

[Turbo Buick 6]

If the clutches in it are in good shape they should have no prob with that kind of power, same goes for the converter. But a looser converter will make the motor feel like it has 100 hp more than it does. If its not a daily driver convert it to non-lock-up and converters are much cheaper. A cheapo bm converter in the 2500-3000 stall range should work nice and only be a few hundred $. Assuming the 700 is the same as the 200 you must remplace the lockup selenoid with a special one for a non lockup. under $50. If you dont the tranny will burn up. I run a non-lockup in my buick and love it. I always swore by lock-up but the converter I had made wasn't available in lock-up and people were seeing .5 sec faster than some converters that cost the same. Hope this helps:hug:

 

[2wd_Sled_Puller]

If the clutches in it are in good shape they should have no prob with that kind of power, same goes for the converter. But a looser converter will make the motor feel like it has 100 hp more than it does. If its not a daily driver convert it to non-lock-up and converters are much cheaper. A cheapo bm converter in the 2500-3000 stall range should work nice and only be a few hundred $. Assuming the 700 is the same as the 200 you must remplace the lockup selenoid with a special one for a non lockup. under $50. If you dont the tranny will burn up. I run a non-lockup in my buick and love it. I always swore by lock-up but the converter I had made wasn't available in lock-up and people were seeing .5 sec faster than some converters that cost the same. Hope this helps:hug:

U have been a awesome help to me i appericate it. This truck will be a DD and will ocassilly have a pretty decent 6,000+ pound trailer hooked to it. So i kinda need a lockup converter dont u thing?? I think i can finally say GASHOG

 

[Turbo Buick 6]

Prob a good idea to go with the lock-up, but something in the 2500 range would work (non lock up) as long as you have a good trans cooler. But I would stick with a lockup. No prob for the help, thats what we're all hear for.

 

[Mike L.]

Unless the 700 is properly built with the best parts it will not last under hard usage. Keep your foot out of it.

 

[Turbo Buick 6]

Unless the 700 is properly built with the best parts it will not last under hard usage. Keep your foot out of it.

even at this power level? Not questioning at all just curious. My friend has one that he put less then $1000 into and its behind a 300 hp motor and seems to live fine

 

[Lonnie]

I was OK with the 700r4 until the 6000lb trailer comment. These transmissions are not designed for heavy towing in OD.

A 200hp 350 will be fine with a 700r4, the 35" tires adds a little stress, but in good condition with a shift kit, you would probably be fine. I ran a built 700r4 in my truck with a 450hp 427, so they can be made to hold up... but this was before the 4L80E was common. If I had to do it again today I would build a 4L80E.

FYI there is essentially nothing in common between a 700r4 & a 200-4r, nor will the valve body or converters exchange with a 4L80E.

Also the transfer cases are different to mate with the different transmission output shafts & also a different adapter is required between the trans/transfercase.

Do yourself a favor & research everything before you buy any parts, otherwise you may have a bunch of things that do not fit together.

 

[Mike L.]

even at this power level? Not questioning at all just curious. My friend has one that he put less then $1000 into and its behind a 300 hp motor and seems to live fine

You do realize this is Kurt doing this, don't you?

 

[2wd_Sled_Puller]

How can i ever tell if its a 700r4 it 1 wire running to the tranny which i beilve is to do with TQ lock up. and i got a kickdown cable

 

[Mike L.]

How can i ever tell if its a 700r4 it 1 wire running to the tranny which i beilve is to do with TQ lock up. and i got a kickdown cable

It's a throttle pressure cable and must be adjusted correctly or the trans burns up fast. You will only be concerned with one wire for lock up and you can use a toggle switch for that.

 

[JMDuramaxLB7]

I think this is gonna get real scary,and that motor will make 250 hp easily. In stock form with fuel injection the vortec 350 made 255 hp. You also said that you were putting a cam in it and a 4 barrell carb on it wich requires an aftermarket intake that will also add power. This motor could easily make 300 hp with good tuning...

 

[Noreaster]

from what Ive heard they guys are the ones to get stuff from for 700r4 http://www.transmissioncenter.net/highperf700r4.htm