4P R40 K24Z "4-Port" Race Head

Introducing the 4P R40 "4-port" Race Head The big debate of porting the R40 or swapping to a 4 Port head for your 9th generation Civic will be battled to the death.  There are absolute advantages to both configurations.  For you guys that want a 4 Port and fly that flag, we have the ULTIMATE solution. Our 4 Port Race casting gives you an OEM R40 water configuration and a 4 port exhaust layout.....and NO half ass RTV on the gasket surface or welding.  It also gives you VTEC provisions on INTAKE and EXHAUST so that you can run traditional K20 based camshafts and rockers.  Or you can run your R40 cams and rockers. BRING ON THE HORSEPOWER. ANY 4 Piston CNC Race Port will fit into this head....Pro 156, Pro R40, Pro 163, Super99, Peacemaker Jr, Peacemaker, Outlaw Turbo....you pick.  No more being held back! .150" thicker deck than an OEM casting for better gasket sealing and bigger boost! Thicker port walls...even with our biggest most aggressive port, you have a thicker wall than any OE