You fellas are saying that CE engine *assembly* was done on weekends? The CE engine in my '69 Corvette was cast on 18 September 69 (a Thursday).. no idea what day it was assembled.
Ps. The cast date for the Corvette CE engine being 18 Sep, coincidentally happens to be the same day as my Camaro rolled off the assembly line at Norwood...
Gary, the assembly date is on the surface the starter bolts to.
I understand that's the hypothesis of some of these posts (but this thread is the only time I've ever heard that).. I've never had the engine out of my Corvette so I cannot contribute on that. It would seem to be a good idea to 'prove/disprove' that plus the 'weekend' assembly theory via a table, such as we've done with other discussions. ie. If someone put the table together which included: CE#, cast code (and cast date), 'assembly' date as theorized, and 'day of the week assembled' .. That might begin to tell us some things as we get enough entries...
Just because you haven't heard of it doesn't mean it's not possible.
We need a lot more data points...