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What COPO 9560 meant
COPO stands for Central Office Production Order: Chevrolet’s system for specifying vehicles outside its regular production menu. It was commonly used for fleet and special applications. In 1968 and 1969, dealers also used it to order high-performance Camaros that were not otherwise available through the standard factory options. COPO identifies an ordering method, not a trim level.
Fred Gibb Chevrolet worked with Chevrolet Product Performance personnel to develop the 1969 package around the ZL1 aluminum 427 and the supporting equipment needed for serious drag-strip use. The Camaro Research Group (CRG) recounts that Gibb placed an initial order for 50 cars in October 1968. The expense made them difficult to sell: Gibb sold 13, and the remaining cars were redistributed. Other dealers placed orders, bringing the documented total to 69 cars across 41 dealers, according to CRG’s COPO history and configuration list.
The initial Gibb cars were largely similar apart from paint and transmission; later orders were more varied. The 69-car total is also cited in Chevrolet’s 2024 COPO Camaro retrospective.
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How the aluminum 427 differed from the 9561 Camaro
The defining feature of COPO 9560 was its ZL1 all-aluminum 427 V8. It grew from Chevrolet’s aluminum big-block racing work associated with Jim Hall’s Chaparral Can-Am effort, but the production engine was not simply the racing engine installed unchanged. Its design included production-oriented changes, including a different oiling arrangement and provision for a mechanical fuel pump. CRG’s historical COPO report gives 430 hp as the period AMA specification. It separately describes a factory dyno result of about 575 hp under test conditions; that figure is a test result, not the period rating, so the two should not be treated as competing published ratings.
COPO 9560 is easy to confuse with COPO 9561, but they were distinct packages. The 9561 Camaro used the L72 427 with an iron block. CRG reports 69 ZL1 9560 cars and estimates 997 iron-block 9561 cars; the latter is an estimate, not a fully audited production count. The price figures below are historical, not current market values.
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| Package | Engine | Documented package price | Production figure |
|---|---|---|---|
| COPO 9560 | ZL1 427, aluminum block | $4,160 addition to the car’s price, per CRG’s historical model reference | 69 cars, documented by CRG and corroborated by Chevrolet |
| COPO 9561 | L72 427, iron block | Not stated in CRG’s comparison | 997 estimated by CRG; not a fully audited count |
Supporting equipment and transmission choices
The ZL1 engine was only part of the 9560 package. The Camaro Research Group’s configuration details describe heavy-duty cooling, cowl induction, special springs, transistorized ignition and a strengthened rear axle with 4.10:1 gearing and a BE code. Camaro-specific changes also included ignition, carburetor and fuel-system details.
The high-performance unit did not include a transmission. Buyers could choose an automatic or a manual transmission; CRG notes that the M20 manual was theoretically available but that no 9560 cars were ordered with it. Power disc brakes and tires were mandatory options, but were not included in the 9560 package price. The package therefore combined a distinctive engine with a set of supporting components and separately specified equipment, rather than a single uniform specification for every car.
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Why the ZL1 was so expensive—and what happened to some cars
CRG’s historical model reference lists a $4,160 COPO 9560 price addition and a total list price above $7,300. Those are period prices, not estimates of what a ZL1 Camaro is worth today. The unusually high cost narrowed the buyer pool; CRG’s history records cars being returned, redistributed or sold after engine swaps. Some cars were modified, and some lost their original engines.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What establishes an individual car’s history
A surviving Camaro should be assessed as an individual vehicle, not authenticated by rarity claims or appearance alone. A VIN can identify the car, but does not by itself establish that it was built as a COPO 9560 ZL1. The engine could be separated from the car, and period swaps occurred. Original paperwork and vehicle records are therefore important when evaluating a claimed ZL1, particularly alongside evidence about its configuration and engine provenance.
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- Order and vehicle documentation: Look for records that connect the car to its original COPO 9560 order and delivery history.
- Engine provenance: Determine whether the aluminum 427 is documented as original to that specific Camaro rather than simply a ZL1 engine fitted later.
- Configuration: Compare transmission, documented options and supporting equipment with the car’s records. The 69 cars were not all identically equipped.
- Condition and changes: Account for modifications, replacement parts and any engine swap when describing how original the car is.
CRG’s detailed dealer distribution and configuration records are specialist research, while Chevrolet’s retrospective independently supports the 69-car total. Neither fact makes every car bearing a ZL1 claim automatically verifiable; the history of the individual vehicle is what matters.
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