1962 Grand Prix 421 Super Duty: A Look Back at Pontiac's Ultra-Rare Heavy Hitter
1962 Grand Prix 421 Super Duty: A Look Back at Pontiac's Ultra-Rare …
Nov 29, 2023
autoevolution.com
421 SUPER DUTY ON THE DYNO @ Butler Performance!! This 421 SD is using the early "306" heads. These flow a little less than the 1962/ #127's and much less than the 1963/ #980 heads, but it still made great power. Almost 500 HP and well over 500 ft.lbs. of torque!! We actually have both a 1962 389 SD with #127 heads and 1963 421 SD with #980 heads in the shop now that we'll be finishing soon. We love working on these old, rare SD's and really love to hear them scream on the dyno! #ButlerPerforman
0:40
421 SUPER DUTY ON THE DYNO @ Butler Performance!! This 421 SD i…
4.1K viewsAug 25, 2015
FacebookButler Performance Pontiac
Engine Month: Today is 421 Day! Celebrate Pontiac’s 421 Super Duty!
36:30
Engine Month: Today is 421 Day! Celebrate Pontiac’s 421 Super Duty!
5 months ago
hotrod.com
Exciting Facts About the Pontiac 421 Super Duty Big Block Engine
1:54
Exciting Facts About the Pontiac 421 Super Duty Big Block Engine
1K viewsMar 7, 2024
YouTubeCarSwagger
The Shocking Truth Behind Pontiac 421 Super Duty Engine
15:38
The Shocking Truth Behind Pontiac 421 Super Duty Engine
1.3K views5 months ago
YouTubeEpic Motors
The Untold Story of Pontiac’s 421 Super Duty — Faster, Louder, and Banned! #MuscleCar #ClassicCars #V8Power #EngineWars #CarEnthusiast #Horsepower #AmericanTrucks #DieselLegends #DieselTrucks | Wandering.Wheels
1:31
The Untold Story of Pontiac’s 421 Super Duty — Faster, Louder, and …
14.7K views5 months ago
FacebookWandering.Wheels
Pontiac's BIGGEST Secret The 421 Super Duty Engine
9:42
Pontiac's BIGGEST Secret The 421 Super Duty Engine
1.8K viewsMar 14, 2025
YouTubeAutoAcademy
1:01
421 Super Duty the outlaw motor Pontiac powerhouse 💯 #pontiac421
198.2K views9 months ago
YouTubeCorner Classic Car Hunter
9:10
PONTIAC - stock Pontiac Super Duty 421v8/405hp vs stock Chevy …
642.8K viewsSep 7, 2009
YouTubedave kliewer
8:23
Birth Of The Super Duty: The 1961 Pontiac 421 SD Ventura
7 months ago
hotrod.com
0:44
1963 Pontiac Catalina Super Duty 421
22.4K viewsJan 2, 2017
YouTubeBruno Beltrame
1:37
Lot S152 1962 Pontiac Super Duty 421 405 HP 4 Speed
47.5K viewsMay 2, 2008
YouTubeMecum Auctions
7:34
Factory Built 1 of 8 - 1963 Pontiac Catalina 421 V8 4 Speed & Ride
5 months ago
MSNMy Car Story With Lou
1:00
THE PONTIAC CATALINA SUPERDUTY 421 that still in the s…
48.3K views8 months ago
FacebookDriven Lostt
8:16
Pontiac 421 Super Duty: A Legend Unleashed with Pontiac Mike
17.3K viewsFeb 14, 2025
YouTubeThe Throttlestop
23:49
The Dark Story Behind the Pontiac 421 Super Duty - The Engine GM T…
874 views2 months ago
YouTubeForgotten Engines
15:01
1962 421 Pontiac super duty: Legendary drag race car and driver
40.2K viewsNov 2, 2024
YouTubeReal World Garage
20:03
The Shocking Truth Behind Pontiac’s Banned 421 Super Duty …
392 viewsMar 9, 2025
YouTubeThe Classic Engine
20:35
How Pontiac’s 421 Super Duty Became Too Dangerous to Continue
1.4K views2 months ago
YouTubeThe Garage Legends
0:06
Pontiac’s Most Brutal Era | SD421, Ram Air & 455 HO Legends #cars …
90.2K views2 months ago
YouTubeData Corner
5:12
The Ultra Rare Proto-Muscle: Pontiac Grand Prix 421 Super Duty
650 viewsJan 9, 2024
YouTubeChris VS Cars
18:02
The Incredible Story Behind Pontiac's Banned Super Duty 421 …
1.8K views8 months ago
YouTubeLeyendas V8
0:57
1962 Pontiac 421 Superduty Catalina Pontiac Factory drag car #pontiac
7.4K views7 months ago
YouTubeCorner Classic Car Hunter
0:59
1961 421 Super Duty Ace Wilson’s Royal Pontiac a piece of Pontiac h…
2.9K views8 months ago
YouTubeCorner Classic Car Hunter
1:35
1962 Pontiac Catalina 421 - Gateway Motorsports Park - Huge Wheelie
169.9K viewsMay 20, 2013
YouTubeRamblinAround
3:33
Driving a 1966 Pontiac Catalina 2+2 421 4 Speed
231.3K viewsApr 29, 2009
YouTube4spdBernie
12:03
The Shocking Truth behind Pontiac Banned 421 Super Duty Engine!
333.5K viewsFeb 28, 2025
YouTubeRare Car Storys
12:56
The Shocking Truth behind Pontiac Banned 421 Super Duty Engine -T…
677 views11 months ago
YouTubeEngine Legends
16:57
Why GM Tried to Bury the Legendary Pontiac 421 Super Dut…
106 views4 months ago
YouTubeThe Garage Legends
9:17
The SHOCKING Truth About Pontiac 421 Banned Super Duty Engine
451 views5 months ago
YouTubeLegends on Wheels
See more videos
Static thumbnail place holder