Perfect Circle Engines
PRO R Big Port
PRO R Big Port
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Produce more power, with less effort! The big port delivers huge gains across the curve even when using less boost compared to stock heads.
-CNC ported runners and chambers designed for maximum efficiency and velocity.
-CNC Newen performance valve job, multi-radius/angle.
-Bronze valves guides
-Surfaced to single digit Ra's
-Assembled with our own proven recipe of top branded components
-Lashed and ready to bolt-on if requested!
*Call or email to discuss which package fits your needs
*Customers must send us good head core, or one may be provided at additional cost.
*Customers must also supply 16 good lifter buckets, can be provided at additional cost.
