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400exshop
11-03-2010, 04:27 PM
can you bore the stock cyl. to a 426 or do you need a sleeve ?
rubbersdown
11-03-2010, 04:31 PM
believe you can bore it. its .120 over but i believe thats the max.
400exshop
11-03-2010, 04:52 PM
where is steve or ron on this one ? come on guy's give up the info.
ish416
11-03-2010, 05:07 PM
You can bore the stock cylinder to .120 or a 426.
PaRedneckRiders
11-03-2010, 05:22 PM
yep stock cylinder a 426 bore is the max bore
bherriman
11-03-2010, 07:02 PM
Originally posted by 400exshop
where is steve or ron on this one ? come on guy's give up the info.


Dude you started this at 630 thread time..and post back at 7 thread time asking where all the anwsers are, Give it time people dont just live on this site waiting to anwswer questions. .120 overbore or 426 cc is the farthest you can go on the stock jug.
honda400ex2003
11-03-2010, 08:35 PM
im on now... we are busy sometimes also, school is nearing the end of the semester so i have alot to get worked out. lol you can do 426 on a stock bore but for better heat distribution a sleeve is better imo. it helps having a thicker cylinder wall to help out. for your use a stock sleeve would be plenty fine. steve