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Thread: Oldsmobile 88 (6th gen) 1965-1970

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    Oldsmobile 88 (6th gen) 1965-1970

    The Oldsmobile 88 (a.k.a. Eighty-Eight) was a full-size car sold by the Oldsmobile division of General Motors and produced from 1949 until 1999. From 1950 to 1974 the 88 was the division's top-selling line, particularly the entry-level models such as the 88 and Dynamic 88. The 88 series was also an image leader for Oldsmobile, particularly in the early years (1949–51) when it was one of the best performing automobiles thanks to its relatively small size, light weight and advanced overhead-valve high-compression V8 engine originally designed for the larger and more luxurious 98 series but dropped into the smaller six-cylinder Oldsmobile 76 body, creating what was considered the predecessor of musclecars of the 1960s.

    A large number of variations in nomenclature were seen over this long model run—Delmont, Delta, Dynamic, Jetstar, Starfire, Super, Holiday, L/S, LSS, Celebrity, and Royale were used at various times with the 88 badge, and Fiesta appeared on some station wagons in the 1950s and 1960s. The name was more commonly shown as numbers in the earlier years ("Delta 88", for example) and was changed to spell-out "Eighty Eight" starting in 1989.

    The Oldsmobile Eighty Eight was produced in Wentzville, Missouri; Flint, Michigan; and Lake Orion, Michigan.

    Sixth generation 1965-1970
    The Delta name in 1965 was an upscale trim line of the Dynamic 88, the Dynamic 88 Delta, replacing the previous top-series B-body Olds, the Super 88. Early '65s were referred to as Dynamic 88 Deltas, but within a few weeks after the start of the model year, Olds began marketing the line as a separate series known as the Delta 88. Other full-sized Oldsmobile model lines included the low-priced Jetstar 88, the volume-selling Dynamic 88, sporty Jetstar I and the sporty and luxurious Starfire, all riding on a 123-inch (3,124 mm) wheelbase. All 1965 Olds models featured all new styling and engineering. The B-body cars featured more rounded styling than previous years with Coke-bottle profiles and semi-fastback rooflines on Holiday (two-door hardtop) coupes - Jetstar I and Starfire coupes got a more rounded variation of the squared-off 1963–64 roofline with concave rear window shared by Pontiac's Grand Prix. Also introduced this year was a new 425 cubic-inch Super Rocket V8 with horsepower ratings ranging from 300 to 370 depending on carburation and compression ratio. The new three-speed Turbo Hydramatic transmission with torque converter replaced the Roto Hydramatic used since 1961. Also new to the option list for 1965 on all B-body cars was a four-speed manual transmission with Hurst floor shifter, which was a seldom-ordered offering.

    Few styling changes other than revised grilles and tail sections marked the 1966 full-sized Oldsmobiles. The sporty Jetstar I series was dropped with a lower-priced Starfire only offered as a hardtop coupe taking its place. All other series' 88 models were carried over from 1965 with a new convertible added to the Delta 88 line and the same bodystyle dropped from the Jetstar 88 line.
    A new option for all senior Oldsmobiles (88, Ninety-Eight and the new front-drive Toronado) was GM's automatic Comfortron Air Conditioning system first introduced by Cadillac in 1964. Comfortron permitted the driver to automatically set a year-round temperature at a constant level. The basic Frigidaire air conditioning unit offered in previous years continued as before and becoming an increasingly popular option on full-sized Oldsmobiles. Another new option for 1966 was a Tilt-and-Telescopic steering wheel that could be vertically adjusted to six different positions as well as telescoped outward from the instrument panel to improve driver comfort.

    For 1967, all GM full-size cars received a mid cycle freshening that featured fuller body panels. More rounded styling cues marked all 1967 Olds 88 models which received longer hoods and shorter decks and more sweeping fastback rooflines on 88 Holiday coupes to emulate the styling of Olds' front-wheel-drive flagship, the Toronado. Olds 88's received a three part front grille made op of a center prow flanked on either side by headlight pods. For the first time since 1959, the dual headlights were split apart by parking lights. Taillights for 88's featured a waterfall design. Interiors made extensive use of wood-tone panels, and bright metal finishes were kept to a minimum. Model wise, there was more name juggling. The Delmont 88 was introduced for 1967 and produced for just two years, replacing both the Jetstar 88 and Dynamic 88 model lines. The Delmont featured the 330 V8 as standard and the 425 V8 as an option in 1967 and the new stroked "Rocket 455" version of the same engine in 1968. The 425 was standard on the Delta 88. The Delta 88 gained a new sub series called the Delta 88 Custom which had a plusher interior than the standard Delta 88 featuring a Strato bench seat in the Holiday Sedan (four-door hardtop) or, in the Holiday Soupe (two-door hardtop), a choice of either Strato bucket seats with console or Strato bench seat with armrest. The Delta Custom Holiday Coupe was essentially a successor to the former 88-based Starfire series offered in previous years (1961–66) but with a standard 88 semi-fastback roofline rather than the Starfire's squared off roof with concave rear window. Another styling cue for the Delta Custom was the addition of a second set of tail light reflectors set into the lower portion of the bumper.

    New options for 1967 included front disc brakes, stereo 8-track tape player and a Climate Combustion Control system for Rocket V8s designed to regulate carburetor air temperature, boost fuel economy, speed choke warm up and eliminate winter icing to permit easier starting and more efficient operation in cold weather. The same assortment of 330 and 425 cubic-inch V8 engines were carried over from 1966, as were most transmission offerings except the optional four-speed manual with Hurst shifter, which was discontinued due to low buyer interest.

    Source: wikipedia.org
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    Last edited by Man of Steel; 11-06-2019 at 03:47 PM.
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    For 1968, the overall design was a carry over. New front end with split grille design that would become an Olds trademark in coming years highlighted all 1968 full-sized Oldsmobiles with horizontal lines on 88's and egg-crate patterns on Ninety-Eights, along with concealed windshield wipers. The Delmont 88 got a larger 350 cubic-inch V8 as standard equipment and the optional V8 that was standard on Delta 88/Custom and Ninety-Eight was jacked up to 455 cubic inches with a 390 hp (291 kW) W-33 option primarily designed as part of the division's police package available as an RPO on all 88's. Horsepower ratings of other Olds engines included 250 for the 350 two-barrel standard in the Delmont 88, 310 for the four-barrel 350 optional in the Delmont 88. A 455 two-barrel rated at 310 hp (231 kW) was standard on the Delta 88/Custom and optional on the Delmont 88. Optional on all 88s was a four-barrel 455 rated at 365 hp (272 kW) from the larger C-body Ninety-Eight. Both the 350 and 455 two-barrel Rocket V8 engines were designed to use regular gasoline while the optional 350 and 455 four-barrel carburated "Ultra High Compression" Super Rocket V8s required premium fuel.

    The 1969 88 series dropped the Delmont name, leaving the Delta 88 as the base model of the series. The Delta 88 Royale trim, only available on a Holiday Coupe, was added as line-topper above the Delta 88 Custom. It came standard with a more luxurious interior featuring a notchback vinyl upholstered bench seat with armrest or Strato bucket seats with optional center console. For safety, a ceiling mounted shoulder belt was offered in the front seats for both the driver and right passenger. This arrangement provided five belt buckles in the front bench seat. The standard engine in the base Delta 88 was a 350 cu in, low compression ratio (9.0:1) Rocket V8 with a Rochester two-barrel carburetor that was rated at 250 hp (186 kW) at 4,600 rpm and 355 lb⋅ft (481 N⋅m) of torque ran on leaded regular 94 RON gasoline. Standard on the Delta 88 Custom and Royale models and optional on the base series was a low compression two-barrel version of the 455 cubic-inch Rocket V8 rated at 310 hp (231 kW) designed to use regular fuel. Optional on all Delta 88s was the four-barrel Ultra High Compression 455 cubic-inch Super Rocket V8 rated at 365 hp (272 kW). Top option was the 390 hp (291 kW) version of the four-barrel 455 V8 designed to run on 98 RON octane fuel available in all Delta 88 models as the W-33 option.

    The two-speed Jetaway automatic that was previously offered as an option on the smaller engine 88 models was dropped completely in favor of the GM three-speed Turbo Hydra-Matic 400 transmission previously only offered with the larger engines. Also a new GM-designed Variable-Ratio Power Steering system was introduced as an option. All full-sized Oldsmobiles were completely restyled for 1969 with more squared off bodylines and rooflines for the Holiday coupes and sedans replacing the semi-fastback look of 1967–68, and ventless front windows on all models. Wheelbases were increased by one-inch to 124 inches (3.1 m). Though the 1969 models were extensively restyled, the basic 1965 chassis design and inner-body structure was retained along with the roofline on the pillared four-door Town sedans. Inside, headrests were now standard equipment and a new instrument panel included square instruments replacing the round instruments of previous years along with a push-button operated ashtray and rotary glove compartment knob, as well as heating/air conditioning controls relocated from the center of the dash to the left of the steering wheel near the lights and wiper switches. The high-beam lights indicator was a red rocket located on the dash. Also new was a steering column-mounted ignition switch that also locked the steering wheel when not in use – a feature found on all 1969-model General Motors passenger cars, a year before locking steering columns were required by federal mandate starting in 1970.

    Only detail changes were made for the 1970 full-sized Oldsmobiles including a new split grille that no longer extended to surround the headlights and a slightly revised rear section. Powertrain selections were carried over from 1969 with both 350 and 455 cubic-inch Rocket V8s now featuring "Positive Valve Rotators" for longer engine life and more efficient operation. A new antenna impregnated into the windshield was introduced this year that replaced the previous fender-mounted unit and was included as standard equipment on all cars equipped with a factory radio. New option this year was a wiper/washer switch mounted in the shift lever knob. Optional radio was a stereo AM-FM radio and a lower dash mounted eight track tape player.

    The 1965–1970 GM B platform is the fourth best selling automobile platform in history after the Volkswagen Beetle, Ford Model T and the Lada Riva.

    Source: Wikipedia.org
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    Last edited by Man of Steel; 11-06-2019 at 03:49 PM.
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    Last edited by Man of Steel; 11-06-2019 at 03:51 PM.

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