[fsstnotch]

Nope, it is in fact true that the 71-73 D2AE-BA is 9.480 the 69-70's are also 9.480 but they are code C9OE-8.

If it were me, I'd look for an F4TE block and start over. Knock everything you have in that block out and put it up for sale on corral forums or here. Sounds like a good candidate for a 357. Only 400 miles on the .030 bore. as long as no damage was done.