Lifter stuck?

I used Lucas break in oil this time with lunati paste on the lifter based and the cam lobes. Used the break in oil on the lifter sides. Primed the new oil pump and got everything lubed. Had some trouble with break in, engine over heated on me. I had a fan in front of it but it was miserably hot that day and I was in the garage. I let it cool off and continued with the break in the following day. It still tried to overheat but managed to get it done. Pulled the valve covers and reinstalled the inner springs, I pulled the lifter from the bore that got me last time and looked at it, looked fine. Put the valve covers back on and changed the oil I went ahead and used the Lucas oil also. Got my timing set and cked for leaks all good. Got it all fired up and fluids to proper levels and drove it today. Probably about 40 miles or so give or take 1-1/2 hours in and out of town and the highway at different speeds and rpm levels, tried to limit idle times. Pulled over and cked things multiple times and all seems good at this point. Gonna let it cool off and change the oil and filter again, probably overkill but better safe than sorry to make sure of any metal from previous damage. Thanks for all the help.
once burned, twice shy. Nobody's going to fault you for going the extra mile. What's an extra oil change, if it may help.