engine I.D.

I'm breaking down an engine I believe to be a 67 Hipo. It's a C5AE-6015E casting but lacks a casting date as usually found above the C5AE. I also checked for a VIN along the pan line, found nothing. The bottom end has the hipo rods and correct main caps. It has a windage tray attached to the journal bolts. Looking over the crank I don't see a smooth spot on the rear journal for the binnel test but it does have several ping marks (2), along the edge of the journal. I found no triangle with the hardness numbers, although the crank is still in the motor along with everything else. The only thing I found on the crank is DRE 637 stamped on the first journal (front). Also did the hipo have a specific oil pump? This one appears to have a date mark 6B with a tag HM68 and an S stamped on the bottom plate. Any help with more identifers or where to look would be appreciated. Thanks

Has assembly date of 7B15C. The only other stamp on the block is located on the passenger side next to the water pump. It's stamped on a flat boss "7AB4-289HP-360". The only other cast is the C5AE-6015E. Has original Ford not Mexican caps. Rods have some material ground off bottom (balancing?). Has counterweight (hatchet) with balancer dated L6. One hipo head dated 6M22, the other non-hipo but has screw in studs and the hipo spring set. Also removed a C6OE 6 vane 3 hole cast iron pump, S7MS intake, and open letter covers. Thanks for responding, I'd post some photos if I could figure it out.

The head is cast 65, has a date of 6M22 and is drilled and capped for smog. This is a little confusing as I thought the smog heads were C7 castings or later. Is this style correct for a 67 engine? Also I'll be looking to find a mate for this head if that's possible.

I'll start the "head hunt", seems I seen a early pair of hipo heads listed somewhere, I look at so much automotive stuff I lose track of where I saw things. I'll let you know should I come across some. Thanks!