Ok I got a dead 2.8L right now with what I am assuming to be a good 700r4 behind it. What are these things rated at for HP/TQ? Someone mentioned in one of my posts that this thing is going to fail on me within a few months of the swap because of the torque the 3.4L puts out.

The engine/tranny and such as 171xxx KM *not miles* on it, I mean I don't mind rebuilding it later if I feel the need, say over winter or something, but right now, if I put the 3.4 in im goign to be broke, I dont need the tranny going within a week.

Any specs on these things?

Thanks

 

I replaced the 2.8 with a 3.4 in my Jeep, which was equipped with a Chrylser 904. I didn't have any problems and I probably had 175,000 miles on that transmission. That 904 isn't known for being the stoutest transmission, either.

Are you sure its a 700R4? I've been told a 700R4 can be beefed to handle 450 hp.

 

Its either a 700r4 or a t5, but t5 is manual which makes it a 700r4.

 

and I forgot to mention, I dont give a **** what it can be beefed up to, that isnt my question, my question was is this tranny going to last, STOCK.

 

A bit testy, aren't you?

Did you read the rest of my post? The part that says:

I replaced the 2.8 with a 3.4 in my Jeep, which was equipped with a Chrylser 904. I didn't have any problems and I probably had 175,000 miles on that transmission.

And by the way, I notice that you are"assuming" it's a good 700R4. "Assuming" your transmission is "good," yes, you won't have any problems with that swap.

 

Yes I am testy, especially when people are comapring a GM trans to a Crysler trans, I don't give a **** about your 904, your another useless poster. I mean thanks for the tip for your Chrysler way of 2.8L to 3.4L swap ddnt ruin your tranny, but I'm talking GM, 700r4, 2.8L to 3.4L, not Chrysler.

I wouldn't be asking if I knew it was good and I wouldn't have any issues, its the fact another dude on here who posted that many people who have done this swap have ended up rebuidling there 700r4's a few months down the road. I want to know if it is the tranny and I will do the same thing, or if it is because theres may have been beat on and wasn't in as good of shape because of their driving before they did the 3.4, and the 3.4 just sped up the process.

 

I modified your post just a bit, to try and help you out with your English.

Now here's the way I understand it. You have no idea if your trans is any good, and you want somebody on this board to tell you whether it is going to hold up behind a 3.4 when you don't even know if it would hold up behind the original 2.8?

Talk about a useless post!

 

No I want to know what the torque ratings are for the 700r4 (as stated in my original post) to see if the torque from a 3.4 would destory a tranny MENT for a 2.8L, and YES there is a difference in the 2 engines power so don't tell me sure it might work, everything might work I'm looking for specs.

Congrats on fixing my typos, I type too fats and could care less about how things look on a forum so if that gets your jollys happy, then enjoy it.

 

Sounds like an eating disorder. Good luck with that.

BTW, the 700R4 was put behind a variety of engines, including 305s and 350s. The horsepower (160, IIRC) and torque (I have no idea) of that little 3.4 are no where near what that trans would see behind a V8.

 

And the 700r4's are aparantly different from v6 to v8, also stated in the original post.

 

That must have been one of those fats things that you typed that I didn't understand (and still don't because I can't find that in your original post). Sorry, my mistake.

 

Ok then it was on the other forum Im asking the same thing

My bad. Anyways, anyone got specs on this thing?

 

Don't be a such a ******** when someone is trying to help you out. Its not like the 3.4 is a powerhouse...why wouldn't a 2.8 700r4 hold up.

 

becuase there is a differnece in torque. I never said it was a powerhouse.

Ok let me add this..

IF YOU DONT GOT ANYTHIGN ****ING USEFUL TO POST, DONT POST, TECHNICIAL SPECS ONLY.

 

Ok on the other forum I just learned that it is good for around 200-250 stock, non-rebuilt, which is why it is causing some people some problems. Time to look into rebuild kits.

 

OK DUDE. WOW. you need to not be a dick. Forums are by nature a place where people can help each other out with problems. You have no right to snap at anyone, we're just trying to help ya. NOW, I did the 2.8 to 3.4L swap, it isnt THAT bad of a job. The 3.4 should roughly be Horsepower: 185 hp @ 5200 rpm
Torque: 210 lb-ft @ 4000 rpm. So I say when your doing the top end (I did a conversion/swap) Add a nice cam lifter set like i did, and you can push 205 HP 225 TQ no problem. Enjoy!

 

Nah I like being a dick

Anyways the whole 3.4 swap is on hold, parents are considering helping me out so I stop sinking money into this thing with no guarantee it will work. I know it will need suspension once I start driving it, needs wheel bearrings, so I'm just calculating m cash and potential cash and may end up buying this modified 87 Regal We will see.

Thanks for the information though, will be a help to someone if I don't use it soon.

 

I have a hopped up 3.4 with a Turbo in my Jimmy 4x4. The tranny has 192,000 miles on it and counting. 45,000 since the swap and 20,000 since the turbo.

 

most people who have swapped the 3.4 w/ that trans in it have it fail a lot sooner than they want. and w/ that amount of km's on it, id say youd want to rebuild it when you get the old 2.8 out. its hard to say how long yours would hold up once it is in there. itll hold up longer if it has been properly maintained. its tough to say though how long itll last, theyre all different. im going by what ive read in the past though, dont know personally, ive got a T5. good luck!!!