Reply to "Adjustable valve train"

On a street (that is, non-race) performance car, an adjustable valvetrainb allows you to run full roller rocker arms, which do not add significant power but do reduce the loaded oil temperature significantly, by reducing sliding friction in your engine. Additionally, it gives one a certain freedom to add any cam including a roller type, to adjust hydraulic lifter pre-loads (a little more revving before valve float) i fthats your cam choice, and to compensate for the position effects of multiple valve grinds over the years. Full roller rochers also seem to make valve jobs last longer and reduces wear on the valve guides. All this depends on an adjustable valvetrain. Some but not all these bennies can be had using a Crane adapter kit for the 351C that does not require machining the cylinder head rocker pedestals.