which 727 rebuild kit?

[Wicked72]

I want to go through my trans before i find out somethings wrong so i want to rebuild it. I want to spend under $300. i see that tci and b&m have kits that fit the budget. I have never gotten into an auto trans before so this will be a learning exp as well. im not looking to make it handle a ton of hp i have no idea what the goal is going to be cuz im broke now and im doing the best i can. I was wondering what kinda power it would be able to handle after the rebuild with a kit like one of those above or will it make it just drive better? maybe a better option then one of those in that price range? thanks

[Cooter]

Not recommending this for you, just throwing it out there.
I'm throwing a 500 inch motor on 200 shot through a junkyard 727 with no rebuild, only a shift kit and stall.
It should live at 500 HP. For a little while till you can afford a GOOD rebuild with high dollar internals.

[ws23rt]

I say go for it. A good transmission overhaul manual for the 727 is needed. The kit you chose will have kit specific info that needs to blend in with the manual.
I rebuilt my first when I was 18 and the hardest part I had was getting it out and back in the car. It was an old cast iron trans. (1957)
Since then I have done many 727s. They are about as tough as a manual trans.
Keep it clean and lay the parts out in a line as they come out. (It helps till you get familiar with it)
I would say good luck but you don't need luck just patience.
BTW just a mild shift kit/basic overhaul kit is all you need to handle what a good running 440 puts out and then some.

[green69rt]

The old 727 were amazingly tough.  500 HP easy.  But anything will suffer if you use it hard enough.  My old RT had a 727 that was shoved from first to reverse more than once and survived (don't ask!!)  I think a shift kit actually helps because the bands slip less but it does put more stress  on the gears, etc.  So, what to do... I would add an external cooler, deep sump pan (finned.)  Then go for the shift kit.  Then new bands, pump.   Beyond that you're talking about a complete trans rebuild.  (sounds like a lot, huh!!)

[Wicked72]

thanks for the info! ill bang on it some but im not running slicks at all so that will help it live longer and i have a nice trans cooler as well if it will handle 500 for some time then it will last a long time with the little bit i plan on doing. i know there is a few books on 727 trans rebuilding. any suggestions?

[bakerhillpins]

I am very interested in this thread.      Was just talking about this very thing and level of effort involved. Would be sweet if you were to make a thread about the process. Lots of extra work though.

[ws23rt]

thanks for the info! ill bang on it some but im not running slicks at all so that will help it live longer and i have a nice trans cooler as well if it will handle 500 for some time then it will last a long time with the little bit i plan on doing. i know there is a few books on 727 trans rebuilding. any suggestions?

A good book for the 727 -----Torqueflite A-727 Transmission Handbook--- by Carl H. Munroe--
It has everything needed for a basic overhaul to performance building.

BTW Automatic transmissions tend to be intimidating to the average mechanic because it is not easy to clearly see how they work. (Unlike a manual trans.)
A complete understanding is not needed. They come apart easily and an overhaul is just replacing worn parts and checking clearances.

Which kit to buy?  I would take apart what you have and make that decision based on what you find is needed. If all checks out good maybe just a shift kit. (Bands and clutches can be bought as needed.)

[XS29L]

I got the rebuild parts for my 727 from Cope Racing Transmissions. John offered alot of good advice. Top quality parts too.