A friend wants to sell a set of S&S 570 Easy Start cams they are chain drive part number 106-4958 is the rear and 106-4957 is the front. Can anyone tell me if they will work on an 09 FLHX. I can't seem to find those part numbers anywhere on the net. He says the are for 2007 and up touring, but I want to be sure.

 

not a good S&S part #.easiest way to tell is to measure the side of the cams that go to the inside (opposite in the sprocket),99-06 will be .875",07-up will be 1.0"

 

As Kirby has said, the inner cam bearing journal will measure 1.000", for use in a late model.
That cam needs to set at 10.0 cr to be effective also.
Scott

 

Thanks guys I will measure them to see. Here are some pictures of the cams in the boxes and I opened them to see that they have the same part number on the end of the cam and they did.