Well i think it's the blocked confirmed. I ordered a leak down tester and it just showed up. All cylinders look good cylinder 4 only had 2 % leak down. That's on a cold non broke in engine so i think that rules out the head or the head gasket. There must be a crack in the block south of tdc in cylinder 4. I had my coolant pressure gauge on as well and never saw a lb in the cooling system testing all 4 cylinders.
Now since i never had this issue before the rebuild the crack must have happened during machining. Is 87mm pushing it to far? Since i need a new block anyways am i better to go back to using my 86.5 pistons and getting new rings. What a waste of money argh...
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