my 2 7.3s are in a 350 and 450,, the 450 has 130ish on it.. and the 350 has 200 on it. both run good.
the 450 has had syn oil in it from the start.. the 350 probably just the last 30k since i have owned it.
hope to get at least 350+ out of them.. if not 500k will see...
i know if i ever find another cheap 7.3 laying around.. perhaps bad body or accessories out.. inthe low .. say.. 2500$ range or less.. I'll grab it and snatch the engine out of it..
wish the 7.3 was still in production..