ok here are my findings for the weekend. rotated the crank by hand all pistons including #6 move up and down beautifully. cleaned up the piston surfaces and turns out they are 040 over. as i thought when i pulled the pan before the short block has been previously rebuilt, and doesn't see to have many miles on since.
put the head on the bench upside down and level put some gas in the #6 chamber and left it for about 30 min. came back and none had leaked through. so i pulled the 2 valves springs and noticed the intake valve had some noticeable play in the guide and would slide right out, as the exhaust valve moved up and down freely BUT had to be turned side to side to be pulled out and had 0 play.
i then put both valves on the bench and spun them and both spin true and don't seem bent at all, although both have a few nicks on their edges.
i also took a closer look at the head gasket sealing lines on both the block and head to see if there might have been a leak through there. judging from the head and block and condition of the gasket looks like there was a good seal all the way around.
i forgot to check the pushrods for straightness but i can do that tonite.
i also noticed that the #6 valves had the most carbon build up by far of all cylinders
so could a small amount of play on the intake guide/valve cause the 0psi? thats the only thing i can think off. i'm thinking of going ahead with the head rebuild new gaskets and hope for the best. unless anyone has any better suggestions?!?!?
