does anyone by chance know the size bolts that holds the gear to the camshaft if anyone knows the answer to this please let me know any help is greatly appreciated

 

If I can remember correctly, the bolts that hold the oil pump to the engine and the cam gear are almost identical. Thread pitch and diameter should be the same I think the oil pump bolts are just a tad longer. If you had access to a set you could use it as reference. Or you could try to find an engine diagram through GM replacement parts and it might list the replacement bolt specs.