View Full Version : 400 ex question
stew6371
05-18-2005, 03:57 AM
i spoke with a very reputable engine builder that told me that a 400ex case didnt hold up very good when a big bore kit was installed. anyone had any problems?
Colby@C&DRacing
05-18-2005, 09:06 AM
We have been building big bore 400ex motors since they came out and have not had any case problems. The strokers have had some issues but a regular big bore NP.
parkers30
05-18-2005, 09:20 AM
maybe the builder used the wrong words and was talking about the head studs? and how they pull out from the cases?
maynard22
05-18-2005, 09:20 AM
Hey Stew-
I am from Tulsa, are you going to be at Little Sahara Memorial Day weekend?
stew6371
05-19-2005, 03:37 AM
no maynard i wont be home plus i dont have a quad yet. thanx for answers guys. i would like any info about 400ex you all mite b willing to share. also looking at 300ex for wife. do either quads need paddles in the sand? what is hp of factory 400? thanx all
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