

Yenko had been building Corvair Stingers, and some of the early Yenko Camaros had Corvair window stickers with the Camaro information typed in! These cars all had the special Yenko hood scoop and Yenko emblems. Most of these early Yenko Camaros went to Chicago, where they were distributed by Span, Inc. for Yenko Sportscars. There were 54 Camaros built in '67, making this one of the rarest of Camaros. There are only 12 surviving cars known, and 9 of those are being raced or are in very bad condition. The car pictured above belongs to Jim Parks, and is the only know '67 Yenko in showroom condition.By 1968 it was clear that Yenko couldn't keep up with the demand for 427 Camaros, so he approached Chevrolet about the possibility of getting factory equipped 427 Camaros. This led to the birth of two special options, COPO 9561 and COPO 9737.
The Central Office Production Order (COPO) was a back door around Chevrolet's performance limits. COPO 9561 was the factory 427 cid 425 hp Camaro, and COPO 9737 was the Sport Car Conversion Kit, consisting of E70X15 tires on Rally Wheels, a 140 mph speedometer, and a 1 inch front stabilizer bar. The first COPO 9561 cars were delivered to Yenko Chevrolet in January, 1969. Cars built through late May had a Stewart Warner 970 custom service tachometer with a special sending unit installed.
Later cars received the factory tach. Your Yenko could be ordered with or without stripes and spoilers. The stripe package included "SYC" decals on the front headrests.
In 1967 the Yenco SYC could be ordered with either the M22 4-speed or the Turbohydramatic transmission for $4245.00, which was a bargain for all that performance! It is not known exactly how many Yenko Camaros were made in 1967. The best figure is either 198 or 201, depending on the source.
Since these cars could be ordered by any dealer there were many more built for other dealers. The best figures at this time are 193 automatics and 822 4-speeds, for a total of 1015 COPO 9561 cars.
I have a friend who bought a Yenko back in 1976, the same time I bought my Z/28. At the time we didn't know what it was, but was it fast! We still didn't know what it was when he sold it in 1980 for $1100 to someone from Sanford, NC. I've heard rumors that the car is now in Newton, NC, just down the road from me, but I've never seen it.
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Just as DonYenko and Dick Harrell were largely responsible for the COPO 9561 427 Camaros, Fred Gibb was the man behind COPO 9560, the aluminum block ZL1 427 Camaro. There were only 69 ZL1's built, and most went to racers. The cars carried a base price of over $7,200, of which $4160.15 was for the engine!
Originally there were going to be 50 cars built, but other dealers clamored for the car, and that ran the total up to 69. These cars were the ultimate factory Camaros, and are very much sought after today.
Chevrolet toyed with the idea of introducing the ZL1 as a regular producton option, and even built two prototypes with special graphics, but decided against it.
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