HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
jojo1224

What head gasket for 444 big bore?

4 posts in this topic

Seems my bike has blown a head gasket. It keeps loosing coolant and when I was kicking it over slowly I could see bubbles in my rad, I also noticed last ride it was smoking a bit. What's the best head gasket to run with a 444cc bore kit? The bike is a 00' yz426 with stage 1 hotcams.

Share this post


Link to post
Share on other sites

Your only choices are Cometic and Wiseco. They look about the same. I think Cometic is a bit cheaper, and more readily available. Luke's racing usually has the Cometic parts in stock, and has about the best price on them. I would suggest doing a leak down test to verify before you pull it apart.

Share this post


Link to post
Share on other sites
The supplier of the kit should provide a correct gasket.

I don't know who did the kit because I bought the engine with the bore kit and hotcams and hinson clutch. One side of the cylinder has baldwin engraved and then there is a hotcams sticker on the other side.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0