Which Pontiac engine dominates: 421 or 455? Racing insights with Ed Smith
1:09
Which Pontiac engine dominates: 421 or 455? Racing insights with E…
1 month ago
MSNBarryTsGarage
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!
Nov 4, 2024
hotrod.com
Pontiac 421 Tribute to the legendary muscle car engine
Pontiac 421 Tribute to the legendary muscle car engine
Apr 21, 2023
bangshift.com
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 …
14.8K views7 months ago
FacebookWandering.Wheels
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
Pontiac’s BANNED 421 Super Duty Engine
9:36
Pontiac’s BANNED 421 Super Duty Engine
15 views2 months ago
YouTubeOutlaw Engines
15:49
The Forgotten Pontiac 421 That Started a Muscle Car War
516 views1 month ago
YouTubeThe Garage Legends
26:28
20 Crazy Facts You Didn’t Know about the Pontiac 421 Super Duty !
1.2K views4 weeks ago
YouTubeCar History Files
1962 Pontiac Catalina 421 Super Duty 4-Speed
Nov 3, 2022
bringatrailer.com
0:39
1963 Pontiac Catalina Swiss Cheese 421SD
17.8K viewsOct 18, 2013
YouTubeThorpes Corvettes
1:06
421 SBC Stroker Build
11.4K viewsAug 15, 2019
YouTuberacedaymechanic
1:01
Konig first start
3.4M viewsSep 30, 2016
YouTubericknsharon
14:37
Dyno Time BluePrint Sbc 400ci
31K viewsJun 12, 2021
YouTubeBaltic Supra Racing
8:44
SMALL BLOCK CHEVY GETS LIT 🔥 [825HP]
27K viewsMay 1, 2019
YouTubeGallStar TV
8:11
Sennheiser MD421 II Dynamic Mic Review / Test
108.5K viewsDec 4, 2018
YouTubePodcastage
3:06
1963 Pontiac Catalina Ventura 421 HO
6.8K viewsApr 26, 2019
YouTubeThe Throttlestop
5:03
All-Aluminum 535 Pontiac Engine
26.1K viewsApr 9, 2021
YouTubeEngine Builder
0:52
Butler Performance built 421 Tri-power engine
1.7K viewsJul 17, 2017
YouTubeButler Performance Pontiac
3:12
1969 Chevy 427 Dyno Test
348.7K viewsApr 3, 2015
YouTubePete's Garage
15:13
5 Best Unknown V8 Engines From The Muscle Car Era
2.4M viewsFeb 8, 2017
YouTubeOldCarMemories.com
17:06
Building a 427 Stroker from a Ford Boss 351 Block - HorsePower S15…
1.3M viewsNov 20, 2019
YouTubePOWERNATION
1:35
1962 Pontiac Catalina 421 - Gateway Motorsports Park - Huge Wheelie
170.1K viewsMay 20, 2013
YouTubeRamblinAround
15:07
Muscle Car Drags (1987) 426 HEMI vs 428-SCJ vs 455-GS vs 454-LS6 …
1.3M viewsMar 20, 2021
YouTubenēdăCFilms MuscleCar TimeMachine
2:24
1962 Pontiac Catalina Super Duty 1 of 1 SOLD!
128.8K viewsApr 6, 2011
YouTubeSt. Louis Car Museum & Sales
1:55
Pontiac Super Duty 455 Built by Butler Performance 503 HP / 583 T…
48.9K viewsDec 5, 2018
YouTubeButler Performance Pontiac
3:33
Driving a 1966 Pontiac Catalina 2+2 421 4 Speed
231.4K viewsApr 29, 2009
YouTube4spdBernie
5:20
Driving A Rover SD1 With A Plane Engine #TBT - Fifth Gear
1.9M viewsJan 21, 2016
YouTubeFifth Gear
2:36
427 Chevrolet on the Engine Dyno -- The Ultimate Stroker Part 5
307.6K viewsDec 8, 2014
YouTubeThe Horsepower Monster
18:16
Re-Building A Junkyard Pontiac 400 Motor For $2,000 - HorsePower S1…
682.4K viewsAug 1, 2020
YouTubePOWERNATION
See more videos
Static thumbnail place holder