Thanks Ralph.Thats what i was thinking,when ya look at the base its bigger.Thats why the cylinder looks smaller.There both 14cc because the pistons from either engine fit the other.The one on the left also has the bridges in them.
I know what ya mean Av8tor,i have the 16cc with the 4 bolts and right now with the engine all converted RTF without a prop or ign it weighs 2.5lbs.It has a stock carb but kens muffler.Dont know what im going to do with that yet,it has the nice stock round cyl fins.unless i get another and see if theyll fit my 14cc parts.