Freeze plug pushed out

We initially before rebuilding the engine took the heads to a performance head rebuilder that magnafluxed, new valves, 3 angle grind, guides, etc. rebuilt and flow tested them. Cost me heavily, so I pray they aren't cracked. But will definitely have them rechecked. We have a complete core 3.8 motor, we bought it for $40 just for the timing cover, as ours was cracked. Its a high mileage engine, but like you said we can transfer any and all good stuff from one to the other if our block turns out to be the culprit for a leak at the deck and heads. Yeah, it's a furd mustang, I want to put a 302 in it, as we have a recent rebuilt one on the stand. I'm getting ready to 302 my ranger, but only after the 400 big block duster is fully finished. Which should be by the end of next month, if my kids stop tearing their cars up and let me focus on the duster. Lol.