T/A Factory Roller Cam Identification

[classiciron]

Got a roller cam from a 1990 Trans Am small block but not certain if it is a factory roller cam or an aftermarket. Other mods were done to the car but nothing too exciting. Experience with other factory GM roller cams have shown numbers stamped on the cam. This one only has "630" stamped on the distributor end of the cam. Any ideas or id for this one?

 

[melsg5]

cannt tell much from that. Use a micrometer to determine lift and other characteristics which will tell you if it's just a stock cam or something else.