Is it feasible to metal spray a cam?

[Tom Goldman]

Bill, i'd look into grinding on a cast core.
Years ago when I first started building AMC engines ,I bought a bunch of parts from a circle track racer who was going to a BBC engine .
Amongst the parts were several cast cams that were reground into rollers.
I never had any wear issues with them and one is still in use today, 39 years later!
Lunati ground them ,and they were nitrided. Most hydraulic cams have a base circle around 1.300" , these were ground to a 1.150" base circle ,which gave plenty of meat to grind the flanks.

One note about metal spraying. I used to metal spray when I worked for General Electric.
Metal spray works very well in applications such as main bearing surfaces where the loading is constant ,and when the area to be sprayed can be undercut ,sprayed and then ground to size. Other surfaces we sprayed usually were not as durable.