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#51
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(ie - windshields layered between two pieces of cardboard and used as an umbrella; thermos filled with paint, etc) K
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'63 LeMans Convertible '63 Grand Prix '65 GTO - original, unrestored, Dad was original owner, 5000 mile Royal Pontiac factory racer '74 Chevelle - original owner, 9.85 @ 136 mph best |
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#52
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And you as well Keith, I've enjoyed hearing your tales from those days as well!
Sounds like an interesting place to work, thank you for sharing.
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1968 Camaro Ex-ISCA Show Car John 10:30 |
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Z-11 396 (07-02-2019) |
#53
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The letter states the 700 number is from “ a complete review of the high performance vehicle area orders to date “. They counted the actual orders for COPO 427s. They had access to the Tonawanda L72 engine production numbers , why didn’t they use them? We know more were ordered and built after 7-9-1969 but how many? |
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Z-11 396 (07-06-2019) |
#54
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I don’t know how good the Chevy inventory control system was in 1969 but Yes I do think the engine production number can go much higher than the car production on SHP engines. They have a history of doing that. The SHP 427 Corvette engine production went much higher than car production numbers (from Corvette web sites so not sure if they are 100% but was same on different sites ) 1967: 277 L88 engines , 20 L88 Corvettes built 1968: 615 L88 engines , 80 L88 Corvettes built 1969: 213 L88 engines , 116 L88 Corvettes built 1969 94 ZL1 engines , about 3 ZL1 Corvettes built. They even built SHP engines for cars that were never built 14 Engines built for the 1971 LS6 Chevelle , no production cars built Some engines have been found with COPO suffix codes and no vin number stamped on the block. Tonawanda built a lot of engines and stamped many different suffix codes 12 engine suffix codes just for 1969 396 Camaro/Chevelle 18 engine suffix codes just for 1969 427 Passenger suffix codes just for a Heavy Duty Clutch or a Police package |
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Z-11 396 (07-06-2019) |
#55
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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. Last edited by JoeC; 07-06-2019 at 06:06 PM. |
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PeteLeathersac (10-04-2020), Z-11 396 (07-06-2019) |
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