Used H116CP 4.060 pistons and 340 connecting rods.

Sound like 20 over for 340 and .60 over for 360
Not really. Those would be WAY down in the hole in a 340 because they are made for 3.58 stroke (360) instead of 3.31 (340). They are a really good deal if you have a 360 that needs bored 60 over!