STEVE S. - Thanks for the lengths of the blades for 38 & 42" decks. Like I said, I never had a 42" deck. That info would be a great way for people to tell the difference between the two decks. Too bad we don't have the ability to have "Sticky Posts" here on the forum. Maybe somebody should write up a comment for the FAQ's and include the 44 & 50 inch decks.
JONATHAN - The K241 is a short stroke engine, only 2-7/8" stroke. All the other engines of that style, K301/321/341 are 3-1/4" stroke. The oil flinging finger on the rod cap won't reach any deeper into the pan, so about the only result would be you'd be able to put more oil in the pan. Whether there would be any oiling improvements I can't say. I remember when I rebuilt the K241 I put in my 72 back in '85 I had to cut about 1/4" off the end of the finger so it wouldn't hit the bottom of the oil pan, I ground/filed it so it just cleared the pan without the pan gasket installed, so I had maybe .060" clearance. I never had any oiling issues with that engine, even when mowing on long steep slopes approaching 45 degrees.
JONATHAN - The K241 is a short stroke engine, only 2-7/8" stroke. All the other engines of that style, K301/321/341 are 3-1/4" stroke. The oil flinging finger on the rod cap won't reach any deeper into the pan, so about the only result would be you'd be able to put more oil in the pan. Whether there would be any oiling improvements I can't say. I remember when I rebuilt the K241 I put in my 72 back in '85 I had to cut about 1/4" off the end of the finger so it wouldn't hit the bottom of the oil pan, I ground/filed it so it just cleared the pan without the pan gasket installed, so I had maybe .060" clearance. I never had any oiling issues with that engine, even when mowing on long steep slopes approaching 45 degrees.