4Piston Racing CNC Ported cylinder head. Pro156v2 CNC ported intake and exhaust ports. Oversize steel intake valve seats to suit +1mm intake valves, manganese bronze valve guides. I bought this and is now no longer needed. Its still in original packaging and has not been opened. The NEW Pro 156v2 CNC cylinder head is the ultimate cylinder head for your street car. The original Pro 156 raised the bar and set the standard for entry level street cylinder heads by offering the highest quality in the industry and airflow that surpassed many very expensive race heads. The newest version of this head takes it a step further with improved airflow throughout the entire lift range, top to bottom. We spent countless hours balancing airflow to make sure this port is the best on the market. This head offers 360 CFM on a stock size valve, giving you plenty of flexibility to run a wide range of VTC and simplifying installation for those that don’t find themselves pulling the engine out of their car to degree cams and check clearances. You can install the head and enjoy the power. Suitable for 2.0-2.4L Road Race engines with a broad powerband in mind. Suitable for 2.4-2.7L Drag Race engines as an alternative to our large valve 163 heads. 360cfm airflow where popular camshafts lift, and huge low end and midrange flow. Slow-cut precision 5-axis cnc porting, second to none on machining quality. 45 degree valve job designed for long life and durability. Unique power producing exhaust port design. Optional Full length bronze manganese valve guide for valve stability. Port walls are left extra thick for high boost applications. The item “4Piston Racing Pro 156v2 CNC Ported Cylinder Head Honda K20 K24 PRB Casting 4P” is in sale since Monday, July 26, 2021. This item is in the category “Vehicle Parts & Accessories\Car Parts\Engines & Engine Parts\Cylinder Heads & Head Covers”. The seller is “dilys07″ and is located in CHELTENHAM. This item can be shipped worldwide.

• Brand: Honda