enduro400rider
03-18-2005, 12:48 PM
now that i have my motor out and im redoing the frame i have decided to bore my 400ex out. i have heard alot of good things about the 416 but i found a good deal on a 406 kit. is there that much of a differance between there performance? the 406 is a weisco 11:1 i would use the XR head gasket to get a more accurate comp. the 416 is a JE 10.8:1. also if i do go with a 416 how do i get the right size head gasket? thanks for the help