ThE ** RAREST** C.O.P.O. Car .

[JoeC]

Originally Posted by William

Why do you continually second-guess his data, obtained directly from Tonawanda production records by an employee, 18 years after production?

Fran Preve did a great job getting the Tonawanda engine numbers and we are lucky to have them but some of his assumptions were not accurate.

In the 1987 article "The Numbers Game" He states the numbers do not reflect actual COPO cars produced but he said that the engines are 2 to 5 percent over cars.
They were not 2 to 5 percent over cars, they were 2 to 22 percent over cars

ZL1 Camaro 88 engines to 69 cars = 22%
L72 Chevelle 358 engines to 323 cars (using RPOs) = 10%
L72 Camaro 1015 engines to 997 cars (using RPOs) = 2%


In the 1990s he made the calculation subtracting the RPO L78 and Z27 Z25 numbers and assumed that all remaining cars are COPO 427.
This calculation result shows 997 COPO L72 Camaros and 323 COPO L72 Chevelles.

This assumption may not be accurate because it is not known how Police, Export, other COPO, F&SO , or foreign assembly plant units can affect the numbers.

There was some info found on non-SS 396 Chevelles.
This showed that the assumption all remaining cars are COPO 427 may not be accurate

Attatced a pic of a 1969 Police Chevelle brochure showing a 396 325 HP option.