| The only SBC 23-degree cast iron head that is CNC-ported from the factory,
the Pro Elite™ is designed to maximize airflow and horsepower for racing applications
where iron heads are mandated. Not only does this head feature
CNC-ported runners, but the combustion chambers are also CNC-ported
to relieve valve shrouding that occurs when the edge of the valve is in close
proximity to the combustion chamber wall. Standard features include multiangle
intake and radiused exhaust valve seats for up to 5% more flow right
out of the box! | | | SBC 23° heads designed for iron-mandated circle track & drag racing | | CnC-ported intake & exhaust runners developed by RHS® engineers | | 2.055" multi-angle intake & 1.600" radius exhaust valve seats | | CnC-ported 69cc combustion chambers to improve airflow efficiency |
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