Bore Question

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thanks for the info. i had an arguement bout this and i didnt believe the guy telling me this so i figured id get my answer here. again this site helped me out.
 
yeah 20 over is .020" bigger than standard.

alot of youngins think that when something is bored it makes it have more power. which IS true but the increase is very very little. what it really means is, the motor has been blown up and the cyclinder was scored. they had to bore it out to smooth it out and therefore a bigger piston.
 
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