1965 1/2 C10 Pickup

[salty531]

I have a 1965 1/2 C10 Pickup that i special ordered in 1965. I am currently just starting a restoration on it. It is totally original and when i pulled the engine(327 v8 H/O) to have it overhauled i discovered that it has a Roller Cam? I was not aware that engines of this vintage had roller cams. I have owned it since new so i know it came from the factory like this. I have been unable to get any information on this. Can anyone help me with this? This Truck was ordered with Powerglide Trans, Power Steering and 12 bolt Posi Differential.

I have been getting some smart ass replies and am sick of it. I will turn 80 in January and am not trying to impress anyone. If you cannot reply positively please do not reply at all. I have given my information as best that i can. I purchased this new and it is all as it came from the factory.