Oracle I did tighten them in sequence, although I have converted to head studs so I tightened in stages 45 ft/lbs, 60 ft/lbs, then 85 ft/lbs.

Here is piston 5


& combustion chamber 5


Inlet port 2 - same as 1 & 3


Inlet port 5


Inlet ports 4 & 6 are dirtier than 2 but better than 5. I will be measuring the valves today. If any are out of spec should I order both a valve and valve guide in repair size? How about changing the valve seats?