The Silvolite catalog shows the stock replacement piston for '93 - '01 5.9 Mags as 1.605 compression height.
IIRC, the blueprint deck height for Mags and the later LAs, like my '86 block, is 9.577 - 9.578"

9.578 - 1.605 - 6.123 - 1.79 = 0.060.

The Federal-Mogul equivalent stock replacement piston is listed at 1.612", so then the piston would be 0.053 in the hole.

That's the facts, Jack! (channeling Bill Murray)

R.