97 K2500 PCM Help

[THEFERMANATOR]

I have an 01 5 speed .bin read from a gmt-800 with a 5.7l. rescale the MAF for the 75mm MAF that the gmt-400 used(gmt800 used an 85mm), and swap the VE table from the express van, and you're good to go. There's no way I would mess with a black box. I picked up an SX cable to use pcmhammer for $20 on sale on amazon, and get 0411's with plugs for $35-45 from the local yards. It just doesn't make sense to mess with a black box for that. And unless you want to rewire your O2 sensors(5.7l uses 4, 5.0l uses 3), you'll be doing custom tuning to get the black box to work in your application since a 5.7l won't just plug in.

[Markmx6]

The 0411 swap is well worth it in my opinion. It takes about an hour to do, both PCM connectors use the same style pins, so you just pull one pin and put in the new connector, over and over again until you're done.

If you really want to stay with the Blackbox, I have one from a 98 Suburban with a 350, 4l60e and it is 4x4. I think I have the original connectors too. If you pay the shipping you can have it for free. It is a completely stock PCM, I pulled it for my 0411 swap.