thanks alot.i just got done with my 52 shorthood,but just took apart and cleaned it up,and painted everything.it didnt smoke or use much oil when i bought it,so no motor work.got an 81 model cheap,been sitting up 15 years so im going to rebuild the motor.i figured i would take it and have the motor plate,and engine milled and decked.have it honed if i can ,i guess it want hurt to bore it if i have to.i wonder if they sell a rebuild kit