Piston up too far?

Any length difference between a 5.9 Magnum rod vs an LA 360 rod?
A friend of mine is building an engine.
It started life as a 5.9 Magnum, that he had bored .020 & installed KB107 pistons in it.
He was going to have it zero decked, but was suprised to see the pistons were .005 to .007 above the deck.

Anybody seen this before?
Is there something that isn't right, parts wise?
He is wanting to install a pair of Eddy Magnum heads on it & worried about the pistons being above the deck.
Welcome for any input.