PHR CNC Stage 5 Race Cylinder Head

The technology is finally here! PHR is proud to offer the very first CNC ported cylinder head package for the 2JZGTE. This is the ultimate in cylinder head technology for the serious enthusiast and/or professional racer. We start with *brand new* Toyota cylinder heads, then let the 5 axis CNC machine perform its magic. The end result is hand blended and flow tested to over 300 cfm intake/200 cfm exhaust per valve at .450" lift. The benefit of CNC machining is that each cylinder is ported to the exact same profile, to prevent cylinder imbalances common to hand-ported cylinder heads. There is no core charge since we begin with brand new Toyota cylinder heads, this means you get the highest quality for your investment. This is for all-out race use only. Includes the full valvetrain upgrade, including 1mm oversize valves, dual valve springs, titanium retainers, bronze valve guides, and full 5 angle valve job. Solid shim buckets optional, contact us for pricing and specifics. Also available bare without valvetrain installed, but including CNC porting, hand blending, and bronze valve guides.