Hello everyone, I just bought a banshee from a guy that didn't know much about it. All he said was that it is very fast. I took out the head to put a new gasket and I noticed that the pistons were 4 millimeters over the cylinders and the head was shaved 4 millimeters. I have the pistons numbers which are D01J1 795M06400. I would like to know if this means that this engine is a 4 mil or what? The compression is around 150. If you guys can help me that would be great so I dont have to take the motor apart. Thanks.