Sorry, should have checked back in sooner. My distraction has led to quite a lot of confusion, evidently. Engine is a direct replacement, OE type
3.7. Expect a bit of derision, being a career automotive repair 60 year old.
So far, so good! Starts, runs, sounds great. Yes, O'Reilly is, I guess the best parts outlet I've ever used, could have something to do with the local store having an involved manager who was the "resale manager" for years before taking full managerial position. Now he has a "kid", approx 24, as resale contact person who's doing a great job also. Rest assured, there are more people in parts stores who's best talent is keeping the counter from floating off the floor.
Even at that, they'll all do to watch. When I first realized old motor was fubar I called for a price and my "buddy" came up with $3,1xx.xx. I said "you mean 3 grand even?", "yea, I suppose so. Approximately 4 months later when I had sold some odds and ends and ratholed enough to pay for it I called back; "Hey Eric, remember that engine you priced me for my Jeep?" "Sorta, are you finally ready?" "Yea, you remember pricing it at $2,800?" "NO, but if that's what I said,,,," "Yep, get her ordered". Wiley buggers on both sides of the counter.
Bob