4L80E numbers and questions

[85 Jimmy]

I have a 4L80E from a 96 (or 98, I can't remember) C3500 that I can get for free and I had a few questions about it. On the side it has
Hydra-matic
24204250

There's a sticker that has a bar code that reads
8BCP
24204515
WILLOW RUN
618BCPH00044064

and there is also a metal tag that says
B CP
98 8 105

Does anyone know what any of it means?

 

[sweetk30]

bla bla bla. basic factory info and what it was speced for.

biggest thng to watch out for is around then thay split the cooler line location. 1 front and 1 rear. get the hottest fluid out faster from the rear of the tranny i guess.

why what ya gona use it for or in ?

 

[Greg Ducato]

The "8" indentifies the year, the "BCP" indicates what kind of vehicle it came out of (2500-3500 2WD 5.7 Gas engine). This is a good model to have , it should have the return cooler line about halfway down the center of the trans on the passenger side. It would be a great build candidate if you are thinking about a conversion.

 

[85 Jimmy]

bla bla bla. basic factory info and what it was speced for.

biggest thng to watch out for is around then thay split the cooler line location. 1 front and 1 rear. get the hottest fluid out faster from the rear of the tranny i guess.

why what ya gona use it for or in ?

I'm going to build a 454 to put in my truck and the 700r4 won't last long from what I've read. I don't know what transfer case I'm going to use yet, I have followed your posts in this thread
http://coloradok5.com/forums/showthread.php?t=166233 and your 4L80/doubler build here http://coloradok5.com/forums/showthread.php?t=253000 . I was thinking about either a doubler or atlas but not sure which would be best for the money.

The "8" indentifies the year, the "BCP" indicates what kind of vehicle it came out of (2500-3500 2WD 5.7 Gas engine). This is a good model to have , it should have the return cooler line about halfway down the center of the trans on the passenger side. It would be a great build candidate if you are thinking about a conversion.

Thanks. it has the cooler line closer to the rear. I did plan to convert it to 4x4 or atleast make a spacer like in the first link above and run a 205 at first.

I figured I might as well get it, it's free and if I don't use it I can just sell it. It doesn't have a harness or controller though. I've been looking around at aftermarket harnesses and stand alone controllers and they have the same parts for the 4L60E and 4L80E, so if I found a 91 blazer or suburban with a 4L60E in a junkyard would the harness and controller work with this transmission, or will I have to get one from a mid to late 90's diesel that doesn't control the engine? Or can I get a controller that controls the engine and not use that part of it?

 

[Greg Ducato]

Well, you can't beat the price! We use the Compushift controller system which has proven to be very reliable and easy to use. It does not require a laptop for programming and comes with a control module for easy parameter changes by just scrolling through a menu and pressing a button. It isn't the cheapest way to go, but it is all inclusive and easy to set up and use.

 

[Keitha]

Or can I get a controller that controls the engine and not use that part of it?

You can go this rout and save a ton of money. Look for a 14167060 and just use the tranny controll side.

Assuming you are talking about your '85, you may want to think about just swaping to a better ECM (like the 14167060 or other PCM type controller) completely. It is not too much more work than adding a stand alone. There are plenty of pin-out diagrams around here for the wiring conversion.

 

[Captainfab]

There's more info in this thread in case you missed it.....
http://coloradok5.com/forums/showthread.php?t=277067

 

[85 Jimmy]

You can go this rout and save a ton of money. Look for a 14167060 and just use the tranny controll side.

Assuming you are talking about your '85, you may want to think about just swaping to a better ECM (like the 14167060 or other PCM type controller) completely. It is not too much more work than adding a stand alone. There are plenty of pin-out diagrams around here for the wiring conversion.

Well I swapped in TPI and using the 1227727 with it. I haven't even looked to see what I can do with that, if anything. But the trans will go in after I build the 454 (unless my 700r4 blows up before then) and I haven't decided what fuel system I'm going to use, the FI has made a huge improvement on the 350.

 

[85 Jimmy]

It really isn't too difficult to build your own controller if you are somewhat electronically inclined. I have read that the best PCM to use for this is the 16197427, as opposed to the 16147060 PCM that Keitha mentioned.

I just did a quick search and found that the 16197427 is more available then the 16147060 also.