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Discussion Starter · #1 ·
Hello,

I purchased a big bore cylinder and pistons(499cc) for my 68 CB450 K1... I also have the Athena gasket kit, my question is; Will I require a different gaskets if I when install this big bore cylinder/pistons? If so, what do I need and where can I find it?

Thanks
 

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Sensei
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27,183 Posts
My first question would be... Does this cylinder fit in your cases?.... IF it does, you can use the standard size base gasket, if not, you will need a base gasket that "fits' the new (altered) sizing......
You will almost certainly need a larger head gasket that clears the larger pistons, preferably solid copper....Check the racer sites....
The rest of the gaskets SHOULD work.....
 
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