Don1977 604 #1 Posted November 30, 2010 I have a 301 that has been bored out to 30 over and has wore out egg shaped. Has anyone sleeved and Kohler engine back to the standard size. I would also have to use inserts on the rod as the crank is more than 10 under size. I have a good friend who is a machinist so most of the work will not cost a lot. I would have to pay the going price to get the crank shaft ground and the price of the sleeve and gaskets. This is a hit and miss engine my friend built. Share this post Link to post Share on other sites
TT-(Moderator) 1,128 #2 Posted November 30, 2010 Many K-301 blocks can be bored to the standard 3.375" K-321 bore size. You will HAVE to use a K-321 or 341 crankshaft so it's balanced correctly for the heavier piston assembly. Share this post Link to post Share on other sites
Audioshot 2 #3 Posted December 1, 2010 Love the sound of those Hit and Miss engines. "POP whoosh whoosh whoosh whoosh POP". Very nice. Share this post Link to post Share on other sites
