Image of Pontiac Grand Prix 421 Super Duty Special

Pontiac Grand Prix 421 Super Duty Special specs

Car type Coupe
Curb weight 1820 kg (4012 lbs)
Dimensions 5.19 m (204 in) long, 1.93 m (76 in) wide, 1.33 m (52 in) high
Wheelbase 2.94 m (116 in)
Introduced 1963
Origin country United States
Views 7.5k
Submitted by Super8


0 - 100 kph5.4 s
0 - 60 mph5.2 s
Top speed242 kph (150 mph)


Engine type Pontiac V8 421 Super Duty
Displacement 6.9 l (421 ci / 6899 cc)
Power 426 ps (420 bhp / 313 kw)
Torque 820 Nm (605 lb-ft)
Power / liter 62 ps (61 hp)
Power / weight 234 ps (231 bhp) / t
Torque / weight 451 Nm (332 lb-ft) / t
Transmission 4 Speed Manual Heavy Duty
Layout front engine, rear wheel drive
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BR2,  8y ago

Not a bad looking car, The AGe Of Muscle, 1962-1978? Its funny how the GranDPrix has changed over the years, from this 400Bhp the 200Bhp Denominator...I would have loved to see a retro version of this car, its a shame about Pontiac, they were not the anything, but the COULD make some good looking cars.

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annoyingimus  8y ago

torque figure seems too high for a 6,9l

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Super8  8y ago

A super high performance version of 421 SD engine. It's not standard but it can be ordered for Pontiac Grand Prix, Bonneville and Catalina under special requirement and it's road legal. The engine code is 13-5 and only available with 4 speed manual heavy duty transmission and differential to handle that enormous torque. Production number is limited and like usual it's not recorded well but surely this is the fastest Pontiac in 1963 and great for drag race