is my stock transmission going to hold up when i replace my 305 w/ a modified 350?... im want to get a new torque converter and rear, what should i get?... my main question though is, is my tranny gonna hold up w/ a new torque converter, rear and b&m shift kit???

 

I think it all depends on what you mean by "modified" 350.
How much torque and horsepower do you expect to run?
What condition is the tranny in? How many miles does it have on it?

 

the 350 is going to hav around 400 hp... the trans has 72,000 miles on it and is still in pretty good condition

 

well i'm pretty sure that 400 hp is more horsepower than what a stock 700r4 can handle, but with only 70,000 some miles and if its in good condition, then maybe just go with the engine for now and then dont fix the tranny sinse its in good shape. After a while (could be a month could be a year? depends on driving style, etc...) the modded 350 will wear down and break the tranny. Then you could replace the tranny later, save a little money now and spend the money later.

or you can play the safe and easier route and just rebuild your existing tranny or purchase a stronger performance tranny when you drop in the 350. saves on time/labor later. you could also sell the old 700r4 to some board members on here, i know of quite a few looking for good used trannys.

hope this can help ya!

 

what about buying a rebuild kit for the tranny?... would that do nething to help save it for less $$?

 

first of all, you are going to have to build up the tranny anyways to take the 400 hp, and second, you should do it when you get your engine.

some people dont have the money for the tranny when they do their engine so they just wait till the thing is scrap metal, by then they have the money and they just replace it with a stronger rebuilt one.

 

i know i am goin to hav to do some work on it but what i need to know is what i need to do to it?... i dont want to get a new transmission but i dont know what needs to be done to my 700r4 to bring it up to par w/ my engine... im lookin for any advice and thanx in advance for your input

 

well one thing to do would be to get a corvette servo....
lots of other things to do too but i would suggest doing a search on this board, i have seen people asking this similar question and getting some very detailed responses.

 

o.k. so i was a little bored so i found this..
https://www.thirdgen.org/techbb2/sho...trength+tranny
maybe this can help

also, i would pm Pro Built Automatics,
he posts a lot on here and could really help you out with what your situation is. he could probably build your tranny with no problem and to whatever strength you need it.

 

thanx a lot for your help