You can never be too careful building an engine. I just caught myself and the machinist speeding.

My mistake #1:

#1 and #2 pistons were on the wrong side of the engine. I suppose I would have found that when I tried to degree the cams, but dang! I've replaced the pictures in the prior post - I'm surprised nobody saw the error (including me for a while).

My mistake #2:

I forgot that my piston stop has a slight bow in it - nothing of concern so long as isn't installed the wrong way. Of course, I had been using it with the wrong side up and had to go back and recheck everything.

Machinist's mistake:

Funny readings on piston/deck clearance caused me to swap the piston stop to the opposite diagonal on a couple of bores and I found the cause...... not enough chamfer at the top of the cylinder in a couple of spots to completely remove the honing edge.... which gave a false deck height.

I also swapped a couple of rod/pistons and the final readings (rounded to the nearest .0005") look great:

#1 = .0115"
#2 = .0110"
#3 = .0115"
#4 = .0110"
#5 = .0115"
#6 = .0115"

Those numbers are terrific for power balance, but will move the CR up a little bit.

Frank