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Action Fours Cams

Besides Kenny Harmon cams, Action Fours also had their own camshafts for the CB 750 SOHC/4 engine:

                                                                    In o/c
                                                                    Ex o/c
         Valve   Durat-                                             btc/abc
Cam      lift    ion       Description                              bbc/atc
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SS-1     .360    270       Ok with stock valve springs, smooth and   28/62
         .360    270       tractable as a stock machine. The cam for 62/28
                           those who are worried about "hot" cams.
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SS-2A    .360    295       For maximum acceleration. Preferred by    35/80
         .360    290       those who are serious about Drag Raging,  70/40
                           yet need a certain degree of tractability.
                           Best power from 6,500 up. Racing Valve
                           Spring Set is recommended.
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