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The premier SD 421 cylinder head was the late 1962-early 1963 casting #9771980 aka "980", featuring a larger 185 cc (11.3 cu in) intake port volume, flowing 230 cu ft/min (6.5 m 3 /min) at 28 in (711 mm). The 421 HO (High Output) was introduced in 1964 as Pontiac's most powerful engine, replacing the 421SD as Pontiac had to discontinue their ...
A small number of 1962 Catalinas and other Pontiacs were built with a "non-streetable" 421 cu in (6.9 L) Super Duty V8 with two four-barrel carburetors and 405 hp (302 kW), as a US$2,250 option (when the base Catalina listed at US$2,725), [9] along with various "over the counter" performance options offered by Pontiac including aluminum bumpers ...
The designation 2+2 was borrowed from European sports car terminology, for a seating arrangement of two in front plus two in the rear. It was designated officially at Pontiac as a "regular performance" model, [2] a thoroughly confusing designation for a vehicle that was clearly intended to be to the Catalina platform what the GTO was to the A-body Lemans: the standard drivetrain was a 2-barrel ...
Pontiac Bonneville Sport Convertible F/I 4 bucket seat cnvt (1958) Pontiac Bonneville X-400 (1959–1960) Pontiac Bonneville Le Grande Conchiche (1966) Pontiac Bonneville G/XP (2002) Pontiac Cirrus (1966) Pontiac Club de Mer (1956) Pontiac Fiero Convertible (1984) Pontiac Grand Prix X-400 (1962–1963) Pontiac Grand Prix SJ Edinburgh (1972)
Introduced in 1963 on Pontiac's 389 and 421 cu in (6.4 and 6.9 L) drag racing engines, General Motors fitted it to the 1967 Z/28 before they used it on the L88 427 cu in (7.0 L) Corvette. It eliminated the production breaker-point ignition allowing greater spark energy and more stable ignition timing at all engine speeds including idle.
These six coupes and six station wagon variants, with their 421 cu in (6.9 L) Pontiac Catalina engines, transmissions and rear ends replacing the Tempest's 326 cu in (5.3 L) engine, rear-mounted Corvair-based transaxle and the small diameter drive shaft often referred to as a "rope" were described as "beyond fast".
For 1963 only, Pontiac offered the 421 cu in (6.9 L) Super Duty with two four-barrel carburetors, rated at 425 hp (317 kW), as a US$2,250 option ($22,104 in 2023 dollars [5]) whereas the base Bonneville was listed at US$3,349 ($33,330 in 2023 dollars [5]). [14] 1963 Pontiac Bonneville sport coupe
1961 – 1963 Pontiac Tempest; 1962 – 1963 Oldsmobile Jetfire; 1962 – 1963 Buick Skylark; 1963 – 1963 Pontiac LeMans; 2008 Cadillac XLR. Y II: RWD: 1984: 2019: 1984 – 2019 Chevrolet Corvette; 2004 – 2009 Cadillac XLR; Indirect successor to the Y I platform. 1966 Chevrolet Corvair. Z I: rear-engine, RWD. 1960: 1969: 1960 – 1969 ...