Block out of square

1.53838" if my trig calculations are correct???
Uuuuh off by about a factor of 10... try 0.1536.... still a LOT! LOL

I just checked the dimensions and that .04 degree number really should be around .33 degrees just like PRH has listed. (Arctan of .046"/8") So that would be .126" at the crank snout (sin 0.33* x 22") and more like .103" at the front cylinders.

Is a compression test all that hard to do here? That would answer the question; cylinder pressures would change 20-30 psi with .100" change in the relative deck.

Shims....