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Replacing the Pontiac-built OHC six-cylinder as the base engine for Tempest, LeMans, and LeMans Sport was Chevrolet's 250 cubic-inch straight-six engine. V8 offerings included 350 and 400-cid options with 2-barrel carburation and a 330 hp (246 kW) 400-cid 4-barrel carbureted engine with dual exhausts.
Displacement began at 287-cubic-inch (4.7 L) and grew as large as 455-cubic-inch (7.5 L) by 1970. Pontiac continued to manufacture its own engines, distinct from Buick, Cadillac, Chevrolet, or Oldsmobile, until 1981. Pontiac engines were used in its U.S.-market cars; Canadian-built Pontiac automobiles generally used Chevrolet engines.
For 1970, that series was replaced by a new base LeMans line with the same bodystyles, while the previous up-level LeMans became the LeMans Sport. The entry level Tempest continued for one more year with a new T-37 hardtop coupe added at mid-year, that included a GT-37 option package as lower-priced junior musclecar available with 350 and 400 ...
1977 Pontiac Can-Am — This car was basically a LeMans Sport Coupe with a Grand Prix interior and a Trans Am "Shaker" hood, a one-off wing and a 400 cid V8 rated at 200 hp (150 kW) with federal emissions, or an Oldsmobile 403 with California emissions. Only 1,100 or so of these were made and are getting quite collectible.
[citation needed] The Custom S became the Le Mans this year and the previous Le Mans series was renamed the Le Mans Sport. The Pontiac-built OHC six-cylinder engine was replaced by a Chevy-built 250 in 3 inline six while the 350 V8 was down to a two-barrel 255 hp (190 kW; 259 PS) version. New engine offerings included 400 in³ V8s rated at 265 ...
A GTO could be ordered with "Endura delete", in which case a chrome front bumper and grille from the Pontiac LeMans would replace the Endura bumper. Powertrain options remained the same as in 1967, but the standard GTO engine's power rating rose to 350 hp (260 kW) at 5,000 rpm. A new Ram Air package, "Ram Air II", became available in mid-year.
As Pontiac had discontinued the 455 in the previous model year, a modified 400 Pontiac V8 dubbed the "T/A 6.6" RPO W72 with a single four-barrel 800CFM Rochester Quadrajet carburettor rated at 200 bhp (203 PS; 149 kW) at 3,600 rpm and a maximum torque of 325 lb⋅ft (441 N⋅m) at 2,400 rpm, as opposed to the regular "6.6 Litre" 400 (RPO L78 ...
Pontiac LeMans The first Malibu was a top-line subseries of the mid-sized Chevrolet Chevelle from 1964 to 1972. Malibus were generally available in a full range of bodystyles including a four-door sedan, two-door Sport Coupe hardtop, convertible and two-seat station wagon.