Kohler K Series Id Question
Posted October 22, 2012 - 06:25 PM
Posted October 22, 2012 - 08:05 PM
Posted October 22, 2012 - 08:29 PM
- Texas Deere and Horse said thank you
Posted October 22, 2012 - 08:33 PM
Posted October 22, 2012 - 08:47 PM
Same block. You might have to pull off the head and measure. K321 14 hp has a 3.5" bore. 12 hp has 3.375"
As stated in "gravely-power" post all the block's have their model number cast into them on the PTO side of the block.
If you look right above the crankshaft, you will see the K-341 in the casting.
This block has K-341 also cast into it.
I couldn't come up any 301, 321 or 241 photos quickly, but they are marked.
Posted October 23, 2012 - 07:33 AM
NOTE: Some 10hp Kohler engine blocks have K301 embossed in the casting on the PTO end. These blocks have a thicker cylinder wall and can be safely bored for a 12hp piston (even up to .030" oversize), without making the cylinder wall too thin. They cannot be bored for a 14hp piston though.
The K301 blocks with a 10hp bore can be safely bored for use with a 12hp piston. The K301 blocks are actually a 12hp block with a 10hp bore. There's nothing special about this blocks, except for the thicker cylinder wall. They weren't used in any "heavy duty" specific purpose either. What happened is on the production line at Kohler, when they ran out of 10hp blocks, they grabbed a bunch of 12hp blocks and bored them for use with a 10hp piston to finish the production of a bunch of 10hp engines. And not all Kohler blocks that have the K301 characters are actually 10hp blocks. Some are bored for a 12hp piston assembly (3.375" STD bore) and therefore, are a 12hp block. The ones that are bored for a 10hp piston assembly (3.250" STD bore) have a thicker cylinder wall and therefore, are a 10hp block. To determine which block is which, the diameter of the cylinder bore needs to be accurately measured.
Posted November 11, 2012 - 01:51 PM
Posted November 28, 2012 - 08:45 AM