67 block/cowl dates
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I see no issue.
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Ditto. Nobody that I know of to date has ever been able to define what physical dates any letter from any plant encompasses. Plants were different in this regard and may have even changed from year-to-year at the same plant.
Even if Atlanta used May 1 - May 5 (M-F) as week letter "A" and May 8 - May 12 (again M-F) as week letter "B" you can see that an engine built on May 8 (Monday) could easily get to Atlanta by Friday and still ge installed in a week letter "B" car.
http://www.chevellestuff.com/1967/prod_year_cal.htm
Even if Atlanta used May 1 - May 5 (M-F) as week letter "A" and May 8 - May 12 (again M-F) as week letter "B" you can see that an engine built on May 8 (Monday) could easily get to Atlanta by Friday and still ge installed in a week letter "B" car.
http://www.chevellestuff.com/1967/prod_year_cal.htm
Production week may not have followed calendar week to the letter.
IMPORTANT The date on the cowl tag is the production week in which the body started fabrication, it is not the final date the car was assembled. Normally it took about 3 days for a car to make its way thru the process from start to finish, it did not just happen in 8 hr shift. Also its not known weather bodies coded say 05B on the schedule did not really start into 05C? The cowl tag date was stamped according to the schedule on the work shift before the body was scheduled to start production, so if the plant went down for some reason that work schedule could/would carry over to the next day/week but they would not re-stamp any tags. Operations did not always run smoothly, lots of labor problems back in those days. Higher optioned cars were scattered in the mix to balance to work load. Too many heavily optioned cars in a row slowed down production or caused quality control issues, its too more time to install AC or SS equipment than it did to push thru a plain jane Chevelle with few options. Those were the bulk of the production. I can just see the union steward now complaining to many SS cars are coming back to back, we are walking out unless you space them farther apart.
Whats more the sequence the body was built did not mean it followed the same sequence for final assembly. There was a body bank on the final line where they staged bodies for release to the final lines. Its possible and highly likely some sat a few days before finally being released, for final assembly. There have been documented cases of engines having dates later than the body date. For instance a car dated 05B that would have started on the last shift in 05B, would not be completed until the following week (05C), 3 days to completion was not uncommon. Higher production cars mover faster because they were pattern orders, all the same etc.
IMPORTANT The date on the cowl tag is the production week in which the body started fabrication, it is not the final date the car was assembled. Normally it took about 3 days for a car to make its way thru the process from start to finish, it did not just happen in 8 hr shift. Also its not known weather bodies coded say 05B on the schedule did not really start into 05C? The cowl tag date was stamped according to the schedule on the work shift before the body was scheduled to start production, so if the plant went down for some reason that work schedule could/would carry over to the next day/week but they would not re-stamp any tags. Operations did not always run smoothly, lots of labor problems back in those days. Higher optioned cars were scattered in the mix to balance to work load. Too many heavily optioned cars in a row slowed down production or caused quality control issues, its too more time to install AC or SS equipment than it did to push thru a plain jane Chevelle with few options. Those were the bulk of the production. I can just see the union steward now complaining to many SS cars are coming back to back, we are walking out unless you space them farther apart.
Whats more the sequence the body was built did not mean it followed the same sequence for final assembly. There was a body bank on the final line where they staged bodies for release to the final lines. Its possible and highly likely some sat a few days before finally being released, for final assembly. There have been documented cases of engines having dates later than the body date. For instance a car dated 05B that would have started on the last shift in 05B, would not be completed until the following week (05C), 3 days to completion was not uncommon. Higher production cars mover faster because they were pattern orders, all the same etc.
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