The shop that is putting another motor in told me that there was a vortec 4.3 with 80 k on it that they could bring in well I just saw it the other day and I told the guy it's not the same for one thing it has no balance shaft or aluminum oil pan but he swears that the only difference with the vortec engine is the heads and intake manifolds the balance shaft is nothing. Is this true will it work ok as long as they swap all the sensors? or are they putting in a nightmare for me.
Tom O