Thanks for your input but I had another thread going with different topic but ended up with the same question as i moved on from a stripped bolt on the viscous fan clutch to TDC issue.

Long story to short, talk to one of local indy MB shops and they were all concerned with turning engine more and recommended to go ahead to remove the head and deal with timing later. So i removed the head and found out a few valves from cylinder #2 & 3 were sticking out and caused issue i was having to set it to TDC. Luckily, i didn't force to turn otherwise, it would have more damage to valves and the head is at a machine shop for inspection and testing.