Stepped piston hitting head, options and advice needed.

So assuming I measured correctly, (and the is a BIG assumption) The numbers are as follows #1 .070 #2 .090 #3 0.70 #4 0.75 #5 0.98 #6 0.95 #7 0.99 #8 0.95 averages out to 0.86.5 above deck which seems to jive with the advertised quench pad height of 0.85

Now I am concerned that I didn't get the dial indicator in the correct position for accurate and repeatable results. I am going to study up a little on how to use it and the magnetic base, but these are the numbers I came up with at first blush.


Did you buy a mag base or did you buy a deck bridge? Much easier to use a deck bridge to measure piston height.

Also, you can get some variance in height because piston to wall clearance. If the numbers are as far off as you say, you need to deck the block and correct it.