Piston compression height is the distance between the centerline of the pin to the flat part of the top of the piston. It's important to know this number when ordering pistons--especially custom ones- ...

Basic mathematics for the car enthusiast: that's this month's shop series as we get into readin', writin' and arodthmetic Like a 9/16-inch box-end wrench or a piston ring compressor, basic mathematics ...