View Full Version : 88mm piston in a 300ex
kxrider
06-28-2003, 02:51 PM
friend just got a 300 need new head and piston, so we order new stock one and its to small, ,and the dude says he need a 88mm, ,but i see that the 400 is only 89???? how cna this be or can it someon tell me, and tell me were to findd one i searched everwere
mikeboone
06-28-2003, 03:15 PM
You wont ever get a 88mm to fit a 300ex. Stock 300ex bore is 74mm. Stock 400ex is 85mm and the 88mm bore is a 426 on the 400ex.
kxrider
06-28-2003, 03:21 PM
thanks man thats wat i tryed to say, btu now he is sayin just 80 so how about that were can i find that, or is it possible
mikeboone
06-28-2003, 04:08 PM
Yea, you can get a 80mm although the cylinder will need to be sleeved. The 80mm with stock stroke would give you 330 cc's. Check with CT racing or Sparks racing for their 330 kit.
Powered by vBulletin® Version 4.2.1 Copyright © 2024 vBulletin Solutions, Inc. All rights reserved.