Dave (A&D) has me tearing down this 502 for inspection, and can you imagine my surprise when I took the head off and heard a little scruffing noise, didnt think much of it and set the head down, and when I looked back I saw what I thought was maybe some weeds or grass protruding from water galleys. I was about to brush it off, and when I took a closer look, HOLY SHIT   It was a freakin rat stuck between the head and block .  Told Dave I need a hazardous duty pay raise In the last pick in the small hole in the head gasket is where he got stuck, when I pulled him out his head busted off and fell in the block. You think there might have been a cooling problem