KC9KAS 4,744 #1 Posted March 31, 2010 While I was working on the B-100 with a K241, I noticed the block has K 301 cast on it....are the blocks the same on the 10 HP & 12 HP? Share this post Link to post Share on other sites
clintonnut 126 #2 Posted March 31, 2010 Those had a 12hp block that was bored to 10hp specs. They are stronger. Charlie Share this post Link to post Share on other sites
