Should I remove the bump at the bottom of the valve guide when porting?

sizemoremk

Registered User
I guess the title asks it all...

Should I remove the bump at the bottom of the valve guide when porting the heads???

Thanks!
 
I have removed all of the bump and blended that whole area on the exhaust ports with good results. You will widen that area also and blend into the existing size of the port exit. Do not make the port exit any larger.

I wouldn't mess with that area on the intake ports. You will notice the shape of the bump near the valve guids on the intakes is setup to initiate the swirl around the valve and into the combustion chamber. Taking that out could mess things up.
 
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