????

That's Older Oval port motor casting. Dport says 722

What’s the engine number stamped on it

The standard Capri V6 engine used in Australia was the 702F 6015 AA, with the 702M 6049 AA 'oval' port heads. These were used on all Australian assembled V6 Capri's from Jan, 1970 through to Nov, 1972. In the UK, they received a 'Facelift' Capri which then used a 722F 6015 BA engine, with the 722M 6090 DA 'D' port heads. We never received the 'Facelift' Capri in Australia. Terry

Thanks for any help already

They are just standard v6 heads. I have 2-3 pairs of the same at home.

Those heads are Oval Port Heads.  Not D Port Heads.  Not "Special" heads. Stock standard regular heads.

Hi,
I continue to read about "AA" and "AB" , yet I still haven't seen these letters, before or after numbers on any parts that I've looked at. Looking into the engine is 1D.

OK, not sure where your finding the AA and AB references from but here's the section for Engines from the Australian Capri parts manual. Have a look through this to see if you can identify all your bits and pieces.

AA and AB relate to 1300cc and 1600cc respectively on Kent 4 cyls