if i put a 0.60 over piston in my 400 ex what would that make it........ sorry for the stupid questions
if i put a 0.60 over piston in my 400 ex what would that make it........ sorry for the stupid questions
'02 400ex
UNI*w/ big gunn s/o
*main 165 42pilot out 1.5 turn, needle 4th spot from top
*stage 2 hot cam
*bored to a 407 with high comp piston
*+2 full flight a-arms
*450r front shocks
.60 calculated to a 1.5mm over
.40 is a 406
.80 is a 416
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