>A 350 crank has a stroke of 3.48"
>A 327 crank has a stroke of 3.25"
>The standard rod length of these 2 strokes is 5.7"
>So therefor the pin height in a 350 piston is higher in the piston than a 327 >by.230".

Your point is well made from a technical perspective. However, the change in pin height would be equal to the change in crank throw offset, which is equal to half the stroke increase, thus it would be half of .230" rather than .230". Enough, as you point out, to reduce compression considerably.

Bob