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anderson3064
11-11-2006, 05:41 PM
OK I know its probally been on here a gazillion times but i searched and found nothing. I need big bore kits for 300ex's. I know they exist but googleing for them comes up with nothing.
help a brother out guys LOL
kyleschonert
11-11-2006, 06:41 PM
www.fourstroketech.net
330Jake
11-11-2006, 06:42 PM
go to https://www.partsforatvs.com its a JE piston kit it costs $400. port and polish your motor and it really gos.
kyleschonert
11-11-2006, 06:45 PM
make sure if it comes with a new sleeve to. the stock one can't handle it from what i've been told.
honda965
11-11-2006, 08:29 PM
im just curious, im lookin 2 bore my 300 as well, but would i be better off gone 2 the 330 or 390? wats more reliable
2muchquad
11-12-2006, 09:17 AM
You can get one of those cheap 330 kits off eturd for under $250 bucks.;)
bwamos
11-13-2006, 07:01 AM
Four Stroke Tech
Curtis Sparks Racing
Powroll (parts only).
C&D Racing
GT Thunder
etc......
YAZ43
11-13-2006, 11:39 AM
Tom Miller Motorsports (TMM) did a 330 for us about a year and a half ago and it ran great. We have his 298cc national motor now and it is awsome.
anderson3064
11-13-2006, 03:30 PM
super help guys,

thanks for all the info, i will be looking into each sasp
250X_project
11-14-2006, 02:11 PM
Hey man I left you a PM a few days ago. Get back to me.