For shaft holddowns, we recommend using our aftermarket billet aluminum holddowns listed separately part These are what is shown in the above pictures. When purchasing these rocker arms, we strongly recommend using our. Since these feature the roller bearing, and a super hard roller tip hardened to 60 on the Rockwell C scale, these will work just as well on a high mileage street car as they do on a drag only setup.
These bearings are rated up to valve spring loads of pounds open pressure which includes most cams in the.īe careful not to confuse these with some other rockers on the market which offer a much cheaper and easier to manufacture design of a solid aluminum rocker which offers the roller tip, but runs the aluminum of the rocker body directly against the shaft, a setup which produces much more friction and wears the arms out extremely quickly. Our rockers use extra heavy duty NSK licensed large fulcrum needle bearings between the arm and the shaft shown in the "view additional images" button so friction is reduced and therefore additional horsepower is gained between the arm and the shaft, as well as between the valve and the the roller tip. These sets come complete with 16 arms, 2 shafts, 16 adjusters and 16 locknuts, and are available in 1. We carry a large selection of rocker arms, shafts and associated hardware, all for the big block Mopar engine of course! Made out of aircraft quality certified aluminum alloy, these arms are formed using a hydraulic extrusion process under tons of pressure, giving these arms an incredible 60, PSI tensile strength! They are fully CNC machined, and finally anodized for additional durability and corrosion protection.