1967 chevrolet camaro Z-28 (end of 1966-1967 part).

From Cars and parts-July 1991

Camaro Z-28 camaro-based standard optional vinyl roof armed.
As we saw in the previous message, the performance from various magazines USa, Motor trend-hor-rod-and others, have shown that the camaro had respectable performance. Most of the camaro in 1967 had been ordered with the small block from 327 small block 350 295 or the new hp, and both of them had to be superior performance at Ford V8 289 cu. i. from 271 HP of the Mustang.
Sensing the presence of a market share that bore high performance, some dealers Chevrolet began to transplant the big block from 427 cu. i. from 435 hp Corvette in the coffins of the Camaro. On the various tracks around the country, the Camaro with big-block began to reap victories in Super Stock at the expense of rival Mustangs. Too easy, was the comment of Ford fans, since the higher displacement engine available on the Mustang was the V8 390 cu. i. from 320 hp. With the introduction of the Z/28 option package, the Camaro was not more shield of high engine capacity and power of his recent Big block but descended to the level of the Mustang in order to challenge the new TRANS AM class (wheelbase of 116 cm, maximum 305 cu, mechanical changes limited, minimum 1000 production aircraft for type-approval) of the SCCA.
In 1966, the Sports Car Club of America (SCCA) created this new category: the Trans American Group II series sedan Racing, better known as Trans Am. The Mustangs dominated encountered in the first year, running against various Plymouth Barracuda and Valiants. Then, the marketing and the head of chevrolet's engineering section, Vince Piggins, they wanted to make sure this does not accaddesse again.
No model chevrolet competed in that year, but its intention to participate in the following year was instrumental in creating the calendar of competitions 1967. In fact, the League was already in doubt after the first year and only the insurance by Piggins of the presence of a model of chevrolet persuaded the SCCA to organize the second season. It was an extremely dangerous exposure on the part of Mr. Piggins lying in an awkward position in the mid-1960s. It was, in fact, determined to develop the performance of the models chevrolet in a society where the word performance was a dirty term. In fact, in 1957, the GM had signed an agreement with the Automobile Association (AMA), which pledged not to develop the capacities and performance of their models and not to participate in an official capacity at competitions. We know, you see the message "1963 CHEVROLET 427 427 Mystery engine or Heavy duty", which in the early months of 1963, President GM Frederic Donner issued a notice ordering all division heads to immediately cease all athletic activity, given that the new policies established to reduce the volume and potency of thrusters. A crackdown that was also advertising for individual brands, all it took was an advertisement too unbalanced on the mere performance that left a stern warning or a threatening phone call from GM'S leaders.
Despite these restrictions, Piggins and a farm worker created a secret development team, within its racing Department, high-performance components for the SS Impala models and Corvair Monza, by labeling them as heavy-duty components to mask their true purpose. And even before being launched, Piggins and his team had already started the development of high-performance parts and accessories for the new Camaro as he managed to get the endorsement? Piggins doesn't say clearly it tells this anecdote: on August 16, 1966 he sent to his boss, W.T. Barwell, a statement on future Z-28. That document was filmed as well engineers Alex Mair and Don McPherson, the sales man Bob Lund and his colleague of advertising Robert Crais. Noting that the newborn Trans Am races had had an unexpected success and that surely the Mustang would have benefits from his successes on the track. Piggins: "my initial proposal was to use our most powerful v8 283, moreover the Mustangs ran with a v8 290 cu. i. and the Barracuda with v8 273 cu, so the v8 283 seemed the right solution, adding the trim F-41 optional, stiffer front and rear Springs-leaf springs, I even have an option J-52 (disc brakes) option with the J-65 (Special friction material for rear drums), the clutch from 11 inches of V-8 396 the 4-speed M-22, a brand new steering box with a mass ratio of 24:1, corvette wheels from 15 "tires and a special bonnet 7.75 with dynamic air intake". Piggins was allowed to start a

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