Original Cam cast #3849347, part #3849346
Couple of questions:
1) Couldn't find a part number stamped anywhere, is there and did I overlook it ?
2) Like the crank, a yellow paint band brushed around it, why did GM do this ?
3) The 3 bolts marked "N" on the heads look original. I know GM used several suppliers, so is there a list of all possible bolts GM used during assembly on all parts ?