Ferrea Roller Rocker Arms H22A Optional valvetrain packages are in

Optional valvetrain packages are in the checkbox area

thicker skirt

5mm Cometic Gaskets are an exclusive design pattern that puts the sealing ring in the proper place for those large bore sizes

4P tool steel billet Outlaw Turbo VTEC Killer camshafts

The S10149 Spring is for use with very high lift cams and in applications where high spring pressure is necessary

Ferrea Roller Rocker Arms H22A Optional valvetrain packages are inThe Ferrea Roller Rocker arms not only reduce friction and valvetrain weight, they allow you to run a more aggressive camshaft lobe that would not be possible on a flat tappet rocker pad. We have all of these part numbers in stock ready to ship. Part Numbers RR1000 B Series Roller Rocker RR1004 K Series Roller Rocker (gold new style) RR1002 K Series Roller Rocker (blue old style) RR8000 K Series Roller Rocker (PURPLE 4 Piston Exclusive)