4P Purple K-Series Ferrea Roller Rocker Arms Stroker Kit 4P Pro S2K CNC Cylinder

4P Pro S2K CNC Cylinder head

and assembled with Ferrea Competition Plus valves and Ferrea PAC HD valve springs

We recommend the higher spring pressure option for turbo or all motor

please send your buckets and camshafts so that we can set lash

Part Numbers

4P Purple K-Series Ferrea Roller Rocker Arms Stroker Kit 4P Pro S2K CNC CylinderFerrea Roller Rocker arms not only reduce friction and valvetrain weight, they allow you to run a more aggressive camshafts. These rockers are 50% less mass than a an OEM steel Honda rocker arm. These rockers eliminate VTEC and allow you to run an aggressive "VTEC Killer" camshaft, and you also can run a 3 lobe traditional camshaft, but it will only use the center VTEC cam lobe. The weight savings will show up in increased horsepower at high rpm and