I just bought an 02 660 motor. The motor wouldn't run when I bought it so I figured I would just use the tranny out of it and sell the rest. well I tore it part this afternoon to find that it had a hole in the piston I thought that most of the stuff inside would be messed up but it wasn't. So I decided that I am going to make this motor a big bore stroker. I want to do something that is different with this one. I want to get as much displacement out of this motor as possible. I was thinking about a 105 mm bore with 12.5 to one compression and a 4 mm stroker crank. Then I found this the other day an 8mm stroker crank http://www.madmanengineering.com/raptor.htm 796 cc's. Has anybody seen a raptor with this big of a motor, and has anybody done any business with mad man engineering. Then I got to thinking how did that guy get 814 cc's out of his grizzly playing with a calculator i figured that that was a +10 mm stroke how did he do it. What do you guys think i should do with this motor.

 

ive heard of 840 raptors im thinking same concept at the pc4000 for the 400ex. maybe its a whole new cyl with an insane bore.

 

Put it in a lawn mower.