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View Full Version : 67.5 overbore on a 250R


sylvan56473
04-16-2003, 07:02 AM
What displacement is a 67.5 overbore on a 250R?
262?
XANDADA
04-16-2003, 07:27 AM
I get 257.62cc:D
methyman
04-16-2003, 01:53 PM
Use this link to figure out size

http://www.bluetraxx.com/engine_displacement_new.htm
XANDADA
04-17-2003, 01:39 AM
There's several formulas you can use the easiest for me is:

BORE x BORE x STROKE x .7854 / 1000 = DISPLACEMENT in cc