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View Full Version : 250x piston oversize valves?



WildWestRacing
04-12-2006, 11:37 PM
Can anyone tell me if there are any clearance issues when you install the 250x 12:1 piston on the 300ex with plus 1 oversize valves and a Web cam?

I know the correct way to check for this, but I'm hoping that someone on here could give me a heads up on this issue before I get to that point.

Thanks,
Bill

Cody_300ex
04-13-2006, 07:35 PM
A friend of mine had to have the intake side of his .080 11:1 300ex weisco piston milled after TC put in OS intake valves.

WildWestRacing
04-14-2006, 02:18 AM
Thanks!

TarheelRedRider
04-14-2006, 09:03 AM
Yes you will have to flycut the piston.

chapmanmd
04-16-2006, 05:02 PM
Bill, my 13:1 is flycut for +2 Kibblewhites.

WildWestRacing
04-16-2006, 05:06 PM
Mark,
Where in the heck did you find a 13:1 piston?

chapmanmd
04-16-2006, 05:17 PM
Powroll

TarheelRedRider
04-17-2006, 10:21 AM
By the way who sells a higher torq starter for the 300ex. Mine just isnt going last long due to the 12.5:1 . If I pump the gas before I try to start it most time it wont even turn over.