205 vs 185 Pistons

The 205 engine has a lower compression ratio than the 185... ...this is because the piston is different on the 205... ...if you look closely the 185 piston is nearly flat on top... ...and the top of the 205 piston is dished
Another view Note the cut out in the piston skirt for the oil squirter Another view... ...and another
The pins partially removed There are several differences in the design of the piston Note the lack of oil hole on the 205 piston The ring grooves look to be in a very similar position
Rather oddly there are 4 pieces of metal inside the 185 piston, each side of the pin??? Another view of the 185 piston showing the pieces of metal The 205 piston without the metal inserts