K1500 4.3 to 7.4 swap

[K1500ss4x4]

Why are you so worried about wiring when it's a stock harness? The only issue may be IAC and you won't even know until you get it to run without a CEL and have idle issues!

You'll have to get this thing running right to see if you have IAC/Idle issues first. Then because of the SB to BB the first thing to look at is IAC wiring. I'm just not sure if the newer stuff is swapped like the older stuff?

Limp Home Chip or Netres chip is an extra chip in older ECM and it's in the Memcal on newer PCM. In catastrophic failure it keeps the engine running safely, not good but safely. There's also some differences in how the PCM handles fueling when running correctly. Many of the old camaros Memcals were sucked up over the years in TPI trnasplant engines and they are scarce, so the guys at ThirdGen.org figured out how to make a V6 Memcal work V8 fueling with a jumper wire.

But there's no shortage of V8 Memcals for this PCM, so why go that route and still have the wrong Knock Module?

I'm really not sure how the V6 Memcal Netres in 16197427 and similar PCM effects fueling? Just never tried as there's plenty of correct parts.

Does someone know for sure this V6 Memcal will mess up V8 fueling?

Hi EagleMark,
Does the LHM use the same mask or is that section of the memcal on a separate system? I'm going to use the 7.4 memcal in my G1 adapter and try one of the bin files I modified from a 5.7 to work with my 7.4 does that sound about right?

YOU GUYS ARE AWESOME!!!!! OH BOY YOU ALREADY ANSWERED MY QUESTION i DIDN'T SEE IT UNTIL AFTER i POSTED SORRY!