robolots Posted January 23, 2014 Report Share Posted January 23, 2014 I have some GM cams with an "A" prefix followed by a number - does anyone know who they are done by? And on the subject of cams, does anyone know any others and where I can get info on them? I know the P series are standard GM cams and I have some tornado cams stamped with an "S" but I'm just interested what and who does what? Quote Link to comment Share on other sites More sharing options...
speedflash Posted September 11, 2016 Report Share Posted September 11, 2016 The S Cams were with the original GM long stroke. They were followed by the X then the P cams. Quote Link to comment Share on other sites More sharing options...
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