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Posted (edited)

397cc

Edited by Shee-Male
Posted
good looking out how do i figure it out for the future

Length of stroke in MM x bore size in MM x bore size in MM x .0007854 x Number of cylinders

 

example: 58 x 66 x 66 x .0007854 x 2 = 396.8594784 rounded up to 397cc

 

stoke stroke is 54mm so a 4 mil is 58, for every .010 over its 1/4 a bore size... stoke is 64... 80 over is 2 full sizes over 66mm

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