Hhmmmm...Well, please assume that most who deal in these are private collectors; These blocks obviously were ran from late 1968 through what maybe June/July of 1969; this is my guess for the Camaro & couple of Vette cars but one can only guess as to when GM actually poured all of these; either as demand called for it or...? Anyways, I'm sure Cuneen would be the one to offer the best assistance on this...
