just remember if you put a big block in it and you don't want expensive headers just get the early 2nd gen stock mounts with normal headers for those years like a 130 dollar set of headers you know. ihave seen big block motor mounts and header and oil pan kits for later 2nd gen and they are EXPENSIVE . ive been told the small blocks bolt right to the big block motor mounts oh well very confusing. well your doing a small block sorry cant think of anything else about it right now. hope you get luck. bless.
PS ill look into it on the Z28 catalog. be a few days.