Image of Pontiac GTO Royal Bobcat 421 SD

Pontiac GTO Royal Bobcat 421 SD specs

Car type Coupe
Curb weight 1565 kg (3450 lbs)
Dimensions 4.97 m (196 in) long, 1.80 m (71 in) wide, 1.31 m (52 in) high
Wheelbase 2.82 m (111 in)
Introduced 1964
Origin country United States
Views 8k
Submitted by Super8


0 - 100 kph4.8 s
0 - 60 mph4.6 s
1/4 mile12.8 s @ 112.5 mph
Top speed265 kph (165 mph)

Powertrain specs

Engine type Pontiac V8 421 SD with Royal Bobcat kit
Displacement 6.9 l (421 ci / 6899 cc)
Power 502 ps (495 bhp / 369 kw) @ 6000 rpm
Torque 691 Nm (510 lb-ft) @ 3600 rpm
Power / liter 73 ps (72 hp)
Power / weight 321 ps (316 bhp) / t
Torque / weight 442 Nm (326 lb-ft) / t
Transmission Muncie M21 4 Speed Manual (3.23 ratio)
Layout front engine, rear wheel drive
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PaulyD  2y ago

That was a super fast car for it's day and even very quick by todays standards

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Shaggy  8y ago

@ Super8: 495 horsepower?! Is that the actual rated horsepower?! The first GTOs were sleepers until they became their own stand-alone model in 1966.

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Super8  8y ago

As you can see, Royal Bobcat GTO is not too much different than standard GTO. There only a Royal Bobcat badge at behind the car. You will never know if this car is fitted with 389 Bobcat or 421 SD Bobcat until you open the hood. It's completely sleeper.

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Super8  8y ago

A super GTO. This crazy idea was created after Ace Wilson's Royal Pontiac, a Pontiac car dealer in Royal Oak, Michigan, offered a special tune-up package for Pontiac 389 engines. They decide to create a bigger and powerful engine for Bobcat tune up and they choose 421 SD unit. It very rare to find any GTO with this engine but there's a chance to fit 421 SD in GTO because 421 SD is an dealer opt in every full size Pontiac. The car itself is very fast and probably the fastest GTO ever made before Ram Air V came out. It can reach 164 mph while 0-60 mph is able to hit 4.6 sec from Muncie M21 4 speed 3.23 final. Also, it rumored this car created by Royal Pontiac is not just to become the leader on drag strip but also to confront it's cousin from Italy. Thought they never meet. Car and Driver test this car and they able to reach 12.8 sec @ 112 mph for 1/4 mile.