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  1. Engine
    I just inherited a set of used SBC CompCam Roller Tip Rocker Arms (1.52 ratio). I can't tell if they were made for use with 3/8" or 7/16" studs or if it even matters. Are there any differences in the dimensions of the arm (i.e., such as the stud slot) or are they identical? If so, how can I tell...
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