Modifying a Camshaft for Panhead or early Shovel using a late shovel camshaft
I have been searching for a specific cam for my new project,been running a V-thunder by comp cams in my FLH 82 and simply love it,so I contact Comp Cams to see if they were making models for either Panhead or early Shovel which is not common by many manufacturers.
I never received an answer for Comp Cams,even ask Andrews if they want to make a run for Panhead /early Shovelhead,they said they would but as soon as I ask for same specs as V-Thunder I have never hear back from them.
So I decided to experiment a little ,search a little and found out that they are basically the same as later cams except for the gear and also the cam cover end which is bigger and also longer on later models to timed the advance weight which is not the case with early models.
I tried machining an old Evo camshaft I had on hands ,to see if the parts that run on bushing was hardened deep ,here is a few pics,it was hardened for about .080 in depth,probably induction case hardened,deep enough not to distort the cam too much,but since original outside diameter is 1.000 inch on later models compare to .8125 inch for early models , a difference of .1875(3/16 inch),so no more hardness at the finish size.
I did order some inner bearing sleeve that were .6875 inside diameter with a .9375 outside diameter and around 1 inch long,which is about a 1 /2 inch too long,so I ordered some bearing hardened sleeves form UK,cause I could not find any in Canada.
Basically all you need is there