[JoeC]

It seems unlikely that the Yenko Nova would use a non-SS body since you would get it with the big block engine. The 1969 COPO Chevelles still used the SS hood, grill, trim, and SS rear black painted panel eventhough the SS emblems were deleted. If Yenko started with a small block Nova if would be quite expensive to purchase all the needed parts for a conversion.
Tom - did you ask Jim about the 1968 Yenko 427 Camaros? Years ago he stated, in an interview, that he remembers the MV code COPO Camaro engine as a 427.