Chainsaw Repair

yup need pics. those farmall m tractors are only about 250ci. stock. pretty hard to believe somebody trippling the ci. out of an already very tight block. been into quite a few of them as they are a very common tractor around here. i know the bottom of the piston at bdc is about an 1/8" of an inch from the weight at it's closest point, something to do with that loooooooong 5" stroke . the piston uses ALL the cylinder, so there isn't much room for added lenght. besides the fact these like to let go if they even hear somebody say the rpm sounds a little high. anything over 2000rpm, the rattle themselves apart. violently, leaving big ol holes in the block from the exiting rods