The CL K0, K1 & partially K2 used the fat cam profile and 286 rockers. Starting with engine #2072210 the skinny cam profile and 312 rockers were used.
Update:
Talked with Ken at Oregon Cams yesterday. The bar stock to make the masters that he's been waiting for arrived and wrong spec. Back to waiting for the right material. May be another month or so.
Talked with Gary at Rockers Unlimited. They are in the process of making a jig and measuring tool, may be ready for business in a couple weeks.
In the end we'll have an alternative to Delta for regrinds of the CB/CL 350 fat and skinny cam profiles and the 286/312 rockers.
LDR, I see you doing all this work trying to get companies to work on our Cams/rockers etc... I was wondering if you ever called Engle to see if they were interested in manufacturing cams for our bikes?...They've been making camshafts for the Aircooled VW industry for years. Maybe they'd be interested in branching to the Aircooled Motorcycles? just a thought.
https://www.englecams.com/
And I've proven myself wrong, again. JuneauDave sent me his NOS SL350K1&2 cam(14101-312-040) so Oregon Camshaft can make a master for regrinds. It has the groove but looking at the CB/CL 050 cam there's a groove in that one as well.It now appears that there is an ID marking on the SL350K1&2 cams, a groove cut at the tach end.
View attachment 19333
The body of the cam also looks a bit odd in that it's smaller than the Fat cam while still resembling one.