That's what mine is. Late 05 build so it's LLY vin and LLY amount of power and torque rating but the entire truck is lbz. Just wish it had the lly pistons...it'd make me feel better
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That should change once my tunes from tony come.:thumb:
If it was an actual lly engine I wouldn't have bought it. It does kind of suck its the oddball cause of the confusion and im guessing it has the chitty head gaskets.