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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