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Discussion Starter · #1 ·
Porting this cylinder head now, not a huge difference between the R/X layout compared to the YFZ. This is stock compared to ported:





 

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Damn! That looks nice! Just curious, how much power do you normally see out of a nice port job? Looks like it would flow tons better!
 

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Discussion Starter · #3 ·
3hp and up depending on port, valve size and parts used in conjunction with the build.
 

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do you think it would be a good idea to just do a port and polish if im not planning to do any other engin work?
 

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coming from my car background, does anybody ever extrude hone thier atv heads?
 

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Discussion Starter · #7 ·
Does anyone Extrude Hone car heads?
I like the idea and do think that on most manifolds its probably the best way to port but Ive never seen anyone use em for heads.
 

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That is some very fine work!:hey:
 
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