1970 Camaro BB core support

[JHS]

Was the core support for a BB 1970 Camaro different from the sb version as was the case with other years/models? I am assuming it is. If so, does anyone have a picture of the BB version or can you tell me the differences to look for?-+

[CamarosRus]

ALL Big Blocks(L-78/L-34), Z-28, all A/C Camaros, and any small block with the VO-1 heavy duty cooling option, had the core support with a wider(air flow)opening, where as the standard L-48, L-65 and Six cyliner camaros received the core support with a narrower opening......

I believe all the replacement/parts dept supports came as only the smaller opening version........and they would could be opened up to replicate the larger hole design....