Cub Cadet FAQ's
Kohler Head Info
This is a High Compression or LP head
On the right is a 10hp "LP" head, on the left is a regular early 10hp head. Note the small valve pocket for the exhaust valve and the material that's removed on the "non-LP" head.
This is a Standard Kohler 10 H.P. Head
There is also a head with the plug over the exhaust valve