1970 Chevrolet Chevelle SS 454

                               1970 Chevrolet Chev elle SS 454


1969 Chevelles were billed as "America's most popular mid-size car." They showed only minor changes for 1969, led by revised front-end styling. A single chrome bar connected quad headlights, and a slotted bumper held the parking lights. Taillight lenses were larger and more vertical, flowing into the quarter panels. Front vent windows began to fade away now that Astro Ventilation was sending outside air into several Chevelle models. The Chevelle lineup slimmed down to Nomad, 300 Deluxe/Greenbrier, Malibu/Concours, and Concours Estate series, the base 300 series was history. No longer a series of its own, the SS 396 turned into a $347.60 option package for any two-door model. That meant not just a convertible, sport coupe, or pickup, but even the pillared coupe and sport coupe in the lower-rent 300 Deluxe series (except the base 300 Deluxe El Camino pickup). Fewer SS396-optioned 300 Deluxe coupes and sport coupes were built than their Malibu counterparts and they are solid gold for collectors. The Super Sport option included a 325-horsepower 396-cubic-inch V8 beneath a double-domed hood, along with a black-out grille displaying an SS emblem and a black rear panel. More potent editions of the 396 engine also made the options list, developing 350 or 375 horsepower (280 kW). Chevelle station wagons came in three levels: Concours, Nomad, and Greenbrier—the last a badge formerly used on the Corvair van. A new dual-action tailgate operated either in the traditional manner or as a panel-type door. Wagons stretched 208 inches (5,300 mm) overall versus 197 inches (5,000 mm) for coupes. New round instrument pods replaced the former linear layout. Chevelle options included headlight washers, power windows and locks, and a rear defroster. Chevy's midsize production rose this year, with Malibus far more popular than their less-costly mates. Fewer than seven percent of Malibus had a six-cylinder engine, while more than 86,000 got an SS 396 option. All '69 Chevelles got a new locking steering column one year ahead of the Federal requirement,^[8] and headrests required for all cars sold in the U.S. after January 1, 1969.
In addition, in 1969 Chevrolet developed a steam powered concept vehicle, designated the SE 124 based on a Chevelle fitted it with a 50 hp Bresler steam engine emplace of its gasoline engine. The Bresler was based on the 1920 Dober steam engines concept.^[9]
In 1970, sheetmetal revisions gave the bodies a more squared-up stance and interiors were redesigned, too. The 1970 Chevelle came in sport coupe, sport sedan, convertible, four-door sedan, a couple of wagons, and coupé utility (the El Camino) body styles. Only 3 of these (Malibu sport coupe, Malibu convertible and El Camino pickup) were available with a choice of one of 2 SS options; RPO Z25 with the SS 396 (402 cid) engine and RPO Z15 with the new 454 cid engine. The SS options were limited to the Malibu 2-door sport coupe, Malibu convertible and El Camino pickup. The base model Chevelle was now named Chevelle (which causes confusion) in lieu of the former base 300 Deluxe and was only as a sport coupe or 4-door sedan.
Station wagons were the entry level Nomad, the Chevelle level Greenbrier, the Malibu level Concours and an upscale Concours Estate. New options included power door locks and a stalk-mounted wiper control. Engine choices ranged from the standard 155 horsepower (116 kW) six-cylinder and 200-horsepower 307-cubic-inch V8, to a pair of 350 V8s and a pair of 402 engines. RPO Z25 SS equipment option included one of these 402 cid engines but was still marketed as a 396. The second 402 cid engine was available under RPO, rated at 330 hp with single exhaust, and was available in any V8 series except an SS optioned Malibu or El Camino. 1970 also saw the introduction of the 454 cid engine and was only available with the RPO Z15 SS Equipment option. The base 454 cid engine was rated at 360 hp (which was also available with cowl induction) and the optional LS6 version at 450 hp.

 

1968 Pontiac Firebird Convertible

This information article was excerpted out of a much larger article in the Wikipedia online encyclopedia.

First generation (1967–1969)

First generation

Production	1967–1969 (Firebird) 1969 (Trans Am)
Assembly	Lordstown, Ohio, United States Norwood, Ohio, United States
Body style	2-door coupe 2-door convertible
Layout	FR layout
Platform	F-body
Engine	230 cu in (3.8 L) Pontiac OHC I6 326 cu in (5.3 L) Pontiac V8 350 cu in (5.7 L) Pontiac V8 400 cu in (6.6 L) Pontiac V8
Wheelbase	108.1 in (2,746 mm) (1967)
Length	188.8 in (4,796 mm) (1967)
Width	72.6 in (1,844 mm) (1967)
Height	51.5 in (1,308 mm) (1967)[2]
Related	Chevrolet Camaro (first generation)

1968 Pontiac Firebird coupe

1969 Pontiac Trans Am

The first generation Firebirds had a characteristic Coke bottle styling. Unlike its cousin, the Chevrolet Camaro, its bumpers were integrated into the design of the front end and its rear "slit" taillights were inspired by the Pontiac GTO. Both a two-door hardtop and a convertible were offered through the 1969 model year. Originally the car was a "consolation prize" for Pontiac, who had initially wished to produce a two-seat sports car of its own design, based on the original Banshee concept car. However, GM feared such a vehicle would directly compete with Chevrolet's Corvette, and the decision was made to give Pontiac a piece of the pony car market by having them share the F-body platform with Chevrolet.
The base model Firebird came equipped with the OHC inline-6 and a single-barrel carburetor. The next model, the Sprint, had a four-barrel carburetor, developing 215 hp (160 kW). Most buyers opted for one of the V8 engines: the 326 CID (5.3 L) with a two-barrel carburetor producing 250 hp (186 kW); the "H.O." (High Output) engine of the same displacement, but with a four-barrel carburetor and producing 285 hp (213 kW); or the 400 CID (6.6 L) from the GTO with 325 hp (242 kW). A "Ram Air" option was also available in 1968, providing functional hood scoops, higher flow heads with stronger valve springs, and a different camshaft. Power for the Ram Air package was the same as the conventional 400 H.O., but the engine peaked at a higher RPM. The 230 CID (3.8 L) engines were subsequently replaced by 250 CID (4.1 L) ones, the first developing 175 hp (130 kW) using a single-barrel carburetor, and the other 215 hp (160 kW) with a four-barrel carburetor. Also for the 1968 model, the 326 CID (5.3 L) engine was replaced by one with a displacement of 350 CID (5.7 L). An "H.O." version of the 350 CID with a revised cam was also offered starting in that year, developed 320 hp (240 kW). Power output of the other engines was increased marginally. In 1969, a $725 optional handling package called the "Trans Am Performance and Appearance Package,", named after the Trans Am Series, which included a rear spoiler, was introduced. Of these first "Trans Ams," only 689 hardtops and eight convertibles were made. There was an additional Ram Air IV option for the 400 CID engine during that year, complementing the Ram Air III; these generated 345 and 335 hp (250 kW) respectively. The 350 "H.O." engine was revised again with a different cam and cylinder heads resulting in 330 hp (250 kW). During 1969 a special 303 cu in (5.0 L) engine was designed for SCCA road racing applications that was not available in production cars.^[3]
The styling difference from the 1967 to the 1968 model was the addition of Federally mandated side marker lights: for the front of the car, the blinkers were made larger and extended to wrap around the front edges of the car, and on the rear, the Pontiac (V-shaped) Arrowhead logo was added to each side. The front door vent-windows were replaced with a single pane of glass. The 1969 model received a major facelift with a new front end design made of an Endura bumper housing the headlights and grilles. The instrument panel and steering wheel were revised. The ignition switch was moved from the dashboard to the steering column with the introduction of GM's new locking ignition switch/steering wheel.
Due to engineering problems that delayed the introduction of the all-new 1970 Firebird beyond the usual fall debut, Pontiac continued production of 1969 model Firebirds into the early months of the 1970 model year (the other 1970 Pontiac models had been introduced on September 18, 1969). By late spring of 1969, Pontiac had deleted all model-year references on Firebird literature and promotional materials, anticipating the extended production run of the then-current 1969 models.