Hey guys, got a 88 gta with l98/700r4. I was looking at swapping either a lt1 or ls1 in soon, hell maybe even building a tpi engine. I have never had a built automatic before and had some questions about them. I figure it will cost as much to swap in a t56 as it will to put in a good built 700r4. Will a built one last as long as the stock one did? It is a daily driver/ strip warrior on the weekends. What really kills them is hooking up right? The only time I would have sticky tires on it would be the weekends and the rest of the time street tires. Does a 3000 stall make your mileage go down considerably? I will probably run a procharger or n02, will that hurt any? Should I just stick with the t56 for the durability?

 

Any suggestions on companies would be welcomed also

 

Pro-Built is a forum sponsor and has the reputation for selling the best transmissions and parts.

 

Sweet...whats their address?

 

www.700r4l60e.com

 

How much more difficult is it to rebuild a 700r4 than say a th350 or 400

 

Quite a bit. Input drum contains 3 clutch packs. Servo must be set with a selective length pin, valve body more involved etc. Even the pump is a little more involved. This all stacks up to add time to the rebuild.

 

I see...seems like you could save some money by building one yourself BUT sounds difficult to pull off without experience with them

 

Some guys say that they are easy, no big deal. To do them right, they are not easy, they are a big deal and hundreds of dollars of specialty tools are needed. That is why the good guys charge so much. My "buddy" rebuilt mine for $550. It lasted 150 miles before it blew up. Learned to do my own because of it. Did not just jump in it though. Went to school at the local tech college. That gave me the basics and confidnce to jump in.