K1500 4.3 to 7.4 swap

[K1500ss4x4]

Well Dave at Moates is normally very friendly and helpful so not sure why he was having a bad day. He also usually just refers guys here with GM stuff.

Brian Harris at TBI Chips is really getting a bad reputation all over the internet and we end up fixing many of his so called custom tunes. Off the shelf fancy name stuff is just crap! Problem is most people don't have equipment or skills to tune and then they would not know a good running engine from bad! So he's gotten away with it for years...

You can make the engine run by just changing the bin file, but what about the knock module? What about LHM/netres? I know the knock won't work correctly. Pretty sure the Netres needs a jumper. I just don't mess with this and start with correct parts.

There's absolutely no reason to change the harness!

Another issue you may have not addressed is fuel pressure? 95 7.4L injectors are smaller then earlier ones and run much more pressure then 13 PSI... IIRC it's like 30 PSI. So in bin file the Injector constant would be wrong as well with wrong fuel pressure.

If your CEL stays on? What codes are set?

Hello EagleMark thanks for the reply!

Yes Dave has been cool he probably was having a bad day.

I changed the fuel pump to the one from the C3500 HD so that's OK I adjusted the lbs per hour to the value in the 7.4 bin.
By "correct parts" are you referring to the 7.4 memcal? it has 4l80E info in it. can I still use it with 4L60E?
I tried to get codes a few days ago but could not get them the CEL just stayed constant. I'm a newbie not even sure what LHM/netres is can you explain?