1835 vs. 1915 for double eagle

[dem3]

Any experiences or opinions regarding these two vw engine sizes. I assume more is better but hopefully without any extra issues. Thanks in advance for any input.

[Dan_]

Leonard likes the 1835 cylinders, because of the thicker walls.  They are less likely to take a square shape if very hot due to the 4 bolts that hold the cylinder heads...