AND DON'T FORGET TO RECHECK THE BOLTS AFTER WARM UP AND COOL DOWN!!!! I made that mistake, they loosened up, and had to get the bolt hole nipples on the front of the motor welded back on and machined, $180 for parts and labor. It's held up so far, but I didn't like the idea. If it goes again, I'm going to get a new cylinder. Also, I used make-a-gasket with the gasket between the cylinder and block, makes getting that thin thing in there better, and machine shop said it helps keep her together.