I have the opportunity to obtain a 340 block. Cast Number: 2780930-340-5 Cast date: 7/10/69 ID Number: R135495. Am I right in saying this is a 1970 340 built in the Ontario CN plant? If so, I know Darts & Dusters were built there. Is there any way to tease out any other info on this block? Thanks FABO friends!
