Quote:
Originally Posted by Dustytrix
You will still have to get ecm vats removed whether its a 5.3 or 6.0. But you can use 5.3 ecm with the 6.0 , You will just need some fine tuning , but really need a tune regardless of which engine you decide to use.
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Got it - the 5.3 with the crack was already in the truck and running right before I pulled it so I am guessing it was tuned prior. I wanted to clarify if I got a 6.0 without an ECM would I be able to get it in and go with the 5.3 ECM which it looks like is a yes.