As the owner of a late 69 COPO it would be interesting to understand this. I'm not sure when the 1st run of L72's were cast but I would have to believe that the Jan 22 1969 cast date would be one of the early cast dates. COPOs weren't sold to the public until January correct (built late Dec. 68)?
There's always a chance that Tonowanda "lost" a rack of completed L72 (3 to a rack) engines in Q1 but found them later for those Sept. built cars? Or Tonowanda lost a batch of early cast blocks and never assembled them until they were needed for the Sept. cars?
Leonard, on those 3 COPOs was the stamped engine assembly date more in line with the Sept. car build? If that is the case, it would point to a batch of castings that were bypassed at Tonowanda.
Would be interesting to know of the 260ish known iron block cars in the Registry, how many have original engines and what the cast & assembly dates are for those cars.
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SOLD 1969 427 COPO Camaro Lemans Blue/Black, M22 4 speed, 15,800 original miles
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