6.0 to 4.8?

[SNOT ROD]

I need to put a stock 4.8 tune in a pickup that currently has a 6.0 w/ tune. I went to the repository and downloaded a tune and changed the gear ratio and tire size but couldn't save it. what's the deal pickle?

[SNOT ROD]

Do I just change the vin in the 4.8 tune to read the same vin as the 6.0 tune?

[arthansen]

I am not sure I understand what you are trying to do. If I read this correctly, you are trying to put a 4.8L Engine tune into a 6.0L Engine PCM? That will not work. Please provide more info.

[SNOT ROD]

the fella is taking the 6.0 motor out of the truck to put a stock 4.8 in and sell it.

[arthansen]

This is over my head. The PCMs may not be interchangable but you should check with someone who knows. Good luck.

[SNOT ROD]

nevermind I just swapped over everything individualy/manualy and now I just need to put it in the truck. He put a stock 4.8 in the truck to sell it. before he had a 6.0 with a cam, headers, boltons, and a custom tune. all I did to the stock 4.8 tune was different tire size and gear ratio.

[EC_Tune]

If the truck came with a 4.8 there should be a stock file somewhere. If not GM Tech2 will flash it back to stock very nicely.