421-Inch Small-Block Makes 839 HP on Port Injection Nitrous Hit!
0:02
hotrod.com
421-Inch Small-Block Makes 839 HP on Port Injection Nitrous Hit!
Done right, nitrous oxide can add a lot of performance to your engine. To see what it can do we head to Westech to see a 421 small-block Chevy dyno tested.
Apr 11, 2023
Dyno Services
Spent 2 days J & P Dyno Services We spent the time working on the bog we have been fighting all year…. By the end of our session we believe we got it!💨🏁 | Gregoire Racing
0:05
Spent 2 days J & P Dyno Services We spent the time working on the bog we have been fighting all year…. By the end of our session we believe we got it!💨🏁 | Gregoire Racing
FacebookGregoire Racing
2K views6 months ago
Dyno Tuning
Dyno Tuning
ravperformance.com
Mar 10, 2021
In this video we lift the veil on the black magic of Dyno Tuning. We look at the three main types of dynos, their benefits/drawbacks and explain what goes on after your tuner puts your car on the dyno. Plenty of useful technical info coming your way - so pull up a chair, grab a cup of coffee, sit back and enjoy! | Haltech
11:36
In this video we lift the veil on the black magic of Dyno Tuning. We look at the three main types of dynos, their benefits/drawbacks and explain what goes on after your tuner puts your car on the dyno. Plenty of useful technical info coming your way - so pull up a chair, grab a cup of coffee, sit back and enjoy! | Haltech
FacebookHaltech
17.9K viewsApr 2, 2020
Top videos
Here is a cool little video of a 421” SB2 headed engine we freshened/updated on the dyno today. It ended up making just over 880 bracket friendly horsepower! Thank you to the Marcum family for making the trip from West Virginia and trusting us with your engine needs! | Sunset Performance Engines LLC
0:55
Here is a cool little video of a 421” SB2 headed engine we freshened/updated on the dyno today. It ended up making just over 880 bracket friendly horsepower! Thank you to the Marcum family for making the trip from West Virginia and trusting us with your engine needs! | Sunset Performance Engines LLC
FacebookSunset Performance Engines
6.1K viewsMay 2, 2019
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 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
FacebookButler Performance Pontiac
4.1K viewsAug 25, 2015
SB Chevy pump gas 421 making a little rumble on the Dyno today. #enginedyno #cncmotorsports | CNC-Motorsports
0:34
SB Chevy pump gas 421 making a little rumble on the Dyno today. #enginedyno #cncmotorsports | CNC-Motorsports
FacebookCNC-Motorsports
3.5K viewsJul 21, 2020
Dyno Reviews
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TikTokdynoreviews
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Staso Cute hero ❤️❤️ #Fy #viral #mrdyno #Dyno #Reaction
TikTokdynoreviews
482 views1 month ago
Here is a cool little video of a 421” SB2 headed engine we freshened/updated on the dyno today. It ended up making just over 880 bracket friendly horsepower! Thank you to the Marcum family for making the trip from West Virginia and trusting us with your engine needs! | Sunset Performance Engines LLC
0:55
Here is a cool little video of a 421” SB2 headed engine we freshened/…
6.1K viewsMay 2, 2019
FacebookSunset Performance Engines LLC
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
SB Chevy pump gas 421 making a little rumble on the Dyno today. #enginedyno #cncmotorsports | CNC-Motorsports
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SB Chevy pump gas 421 making a little rumble on the Dyno today. #e…
3.5K viewsJul 21, 2020
FacebookCNC-Motorsports
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Audi A4 In for stage one remap and dyno Going from 183BHP and 421NM torque Going to 213BHP and 500NM torque | Carlton Tuning Ltd
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