Can anyone suggest where to get a 20v head polished and ported + oversized valves put in?
How much would this cost?
Has anyone got such a head for sale maybe?
Looking into possibilities as apparently this is restricting factor on my engine at the moment. I could force more boost but any further gains would not be made efficiently.
Many thanks.
Chris
How much would this cost?
Has anyone got such a head for sale maybe?
Looking into possibilities as apparently this is restricting factor on my engine at the moment. I could force more boost but any further gains would not be made efficiently.
Many thanks.
Chris

Comment