[NorCam]

Decided that the tumbling process was likely better to get inside all the ports and the intake runners than vapor blasting so I decided to have both intakes tumbled. They turned out really nice and I'll re-stake the splash shields later today with some epoxy added to ensure the rivets are set. I'm keeping the 472 intake on the right and will sell off the 116 intake on the left. It's dated 3.20.70 as noted above. Not a lot of difference between the 2 except for the front oil plugs and the 472 intake having one added reinforcing web on the underside distributor boss.