Who's done it?
I was looking at the speed engineering kit hoping it is 100% complete. This will be going into my 05 Avalanche. I don't see the point of building up the 4l65 since a bigger motor will be in the future.

 

I have an 80E in my 63 P/U. It's a little different since your starting from a truck harness and PCM, but it's simple enough to swap the harness pins at the tranny connector instead of buying a adapter. Also since your already using a truck PCM, I believe you just need to reflash the PCM with the 4L80E settings in place of the 60E settings once the pins are swapped.

Using an F-body PCM I had to have HP tuners merge the F-body and Truck OS to make it work.

 

I did mine recent Don.

I'd get the parts on my own, personally. If you get a PI converter, you can keep the 6.0 flexplate and skip the spacer stuff as well. I used the new shift cable bracket, and ended up throwing out the dipstick tube that I got from SE (wouldn't fit my truck) and going with a Lokar flex tube (plus its polished alum. for that extra bling). I ordered the wiring and plug adaptors directly from speartech (which you need for the 2nd VSS on the latest 80E design) and ran my own -6AN tranny cooler lines with a derale AN cooler (plus the hard line to AN converters). I used the tranny cross member from an 03 2500 HD (use the same year as the truck and match the drive). Because I switched from AWD to 2WD, I countersunk and welded some grade 8 bolts to in the frame and bolted the crossmember straight up. I didn't need anything else (except the 80E segment for the PCM which I got from a friend and copied into my custom os with EFI Live).

 

Thanks. My tranny guy is looking into the swap now.The programming is no problem since I already have an Avalanche 6.0/4L80 tranny file that works.
Just looking for the easiest,fastest way for the swap.I like doing motors ect but hate Auto tranny's.

 

Let me know how it all works man. You know, just in case I need to do it to my wife's Av for some *cough* twin turbo *cough* reason when she's on vacation or something

 

I told the wife we need it for towing

She didn't notice the new 6.0 iron block sitting in the corner

 

I'll have to try that one

 

think i could get the 6.0/4l80 computer file that you have?

 

a member by the name of doublenot was selling a complete kit a few months ago. I decided to go flt instead of his speed engineering kit but his price was 2800 for everything.