Classic Camaro Parts - COPO 9561 What does it mean - Steves Camaro Parts San Bruno - 650-873-1890 - The Camaro Experts

Copo 9561 - what does it mean?  This was the dealer order number for a factory cast-iron 427 engine from the seldom used Central Office Production Order System.  After all, Chevrolet was not in the business for the sole purpose of installing 400+ cid engines into the light weight Camaros.  The real nuts and bolts of the COPO cars was the cast iron 427/425 engine. The COPO would start out as a basic SS 396 Camaro.  By adding and deleting the following components, you can see how the COPO was built.

Deleted

L78 396/375 hp engine

Engine  emblem on air cleaner

SS hood with louvers

Open element air cleaner

SS 396 front coil springs

SS 396 rear leaf springs

Standard 12-bold rear axle

Standard SS 396 radiator

Standard positraction lube

SS rear panel emblem

SS front fender emblems

SS grill emblem

black rear panel between tail lights

Added

L72 427/425 hp engine

427/425 decal *

complete ZL2 cowl induction hood system

cowl induction L78 air cleaner

HD F62 front springs

HD G32 five-leaf springs

4.10 service package 12 bolt

HD "curved neck" radiator**

Service package Lube

base Camaro bow-tie rear emblems****

nothing added

base Camaro bow-tie grill emblem***

body color rear panel

* while the COPO called for the balance of the decals to be that of the L&* engine, most cars did have these decals installed.

** not all COPO's had the curved-neck radiator

*** when ordering with RS option, car received RS grill emblem but base Camaro fender emblems.

In 1967 and 1968, the 427 engines were installed by different Chevrolet dealers such as Fred Gibb, Yenko, Nickey and others.

source: The 1969 Camaro Reference Book

by John Hooper

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