Opinions only? OK, here goes….
Good choice with the ERA 427 as the ‘model’.
1. First choice for me (ie most value) would be a standard stroke 427 FE SO.
I was actually ready to put my money where my mouth is...I did seriously consider Ernie's (
Excaliber) ERA 427 SO back about seven years ago; there unfortunately were a few too many barriers against importing it into Aus.
The 427 SO was the engine of choice in the originals, of course.
2. 428 FE, as per most originals. I would value a spec. that was close to original
3. 427 FE aluminium modern next, and preferably standard stroke
4. 390 FE bored/stroked to at least 427 capacity
5. I wouldn’t consider an ERA 427 with an SBF
Cheers,
Glen