Camshaft Identification

I think if you could ascertain the lift, that would go a long way to figuring the cam number, if it is really a "purple shaft" cam. If it is an hydraulic cam, you'll need a real long travel indicator to reach down in there and set the tip off of the edge of the lifter. If you aren't able to do that then you'll have to pull the intake manifold to get to the lifter.