54-62 generator cam cover kit. For OEM/S&S cases

9/16" ID pinion bushing. 4 ribs, without tapped hole top for end oiling. 1/4" generator mount holes. Mounting holes must be drilled to 5/16" for use with1958-up generators. Custom replacement for 25216-58. Cast 356-T6 extra strong aluminum cam covers in the same burnished finish as S&S crankcases. CNC precision machined to offer close tolerances. Improves crankcase ventilation and oil-air mist separation via a larger, redesigned baffle chamber. Bushings are installed and reamed to factory specifications.