No. They ALL came with the standard 4.00" bore from the factory, whether it was a 302, 327, or 350. If it's bored 30 over, it's been rebuilt at least once.
1970 Z28...Stacy
Cosmo's Factory was created in 1970.
Olivetti-Underwood Factory was created in 1970.
Douai Renault Factory was created in 1970.
It was not a factory option in 1970
The corvette factory can get all of that
Chevy block with casting #3970010 is not a 4-bolt main block---1968--327 cid/250hp A body car---1969-79-350 cid/185hp--car , truck , vette.
Darling Are You Bored with Men - 1968 was released on: USA: 1968 (San Francisco, California) USA: 5 May 1970 (Boston, Massachusetts)
Hydraulic, from the factory.
Shipped from the factory @ 1970
A nice medium bright blue.
It shipped from the factory betwenn 1954 and 1970. You will have to call S&W to narrow it down any further.