6.0L Head Shootout 706 vs 799 vs 821
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6.0L Head Shootout 706 vs 799 vs 821
17.6K views7 months ago
YouTubeRichard Holdener
Porting Some LS3 821 Heads. I Give Flow Numbers
8:17
Porting Some LS3 821 Heads. I Give Flow Numbers
10.1K viewsNov 19, 2024
YouTubeEric Weingartner
LS3 821 cylinder heads getting an upgrade. CNC Porting greatly improves mid lift flow numbers taking full advantage of todays modern performance camshafts. www.cnc-motorsports.com | CNC-Motorsports
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LS3 821 cylinder heads getting an upgrade. CNC Porting greatly improves mid lift flow numbers taking full advantage of todays modern performance camshafts. www.cnc-motorsports.com | CNC-Motorsports
4K viewsApr 20, 2024
FacebookCNC-Motorsports
LS3 821 cylinder heads getting an upgrade. CNC Porting greatly improves mid lift flow numbers taking full advantage of todays modern performance camshafts. www.cnc-motorsports.com For more information on pricing please click here -->https://cnc-motorsports.com/catalog/product/view/id/100506/s/ls3-ls92-cnc-ported-head-service/category/144/ | CNC-Motorsports
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LS3 821 cylinder heads getting an upgrade. CNC Porting greatly improves mid lift flow numbers taking full advantage of todays modern performance camshafts. www.cnc-motorsports.com For more information on pricing please click here -->https://cnc-motorsports.com/catalog/product/view/id/100506/s/ls3-ls92-cnc-ported-head-service/category/144/ | CNC-Motorsports
3K viewsApr 19, 2024
FacebookCNC-Motorsports
1000-Hp on Pump Gas? Loaded TWO vids today that covered ALL testing I did with @stevemorrisengines recently. We compared the stock LS3 821 heads to the new @afr_heads 275 LS3 Mongoose heads. Tests were run NA and Boosted on 93 pump & E85! Also tested a radiused air horn on na and supercharged combos. Any guesses how much timing Steve ran on the @vortechsuperchargers motor? So much cool stuff! Make sure to check out @richardholdenerperformance for deals on LS turbos, cams, springs, lifters, waste
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1000-Hp on Pump Gas? Loaded TWO vids today that covered ALL testing I did with @stevemorrisengines recently. We compared the stock LS3 821 heads to the new @afr_heads 275 LS3 Mongoose heads. Tests were run NA and Boosted on 93 pump & E85! Also tested a radiused air horn on na and supercharged combos. Any guesses how much timing Steve ran on the @vortechsuperchargers motor? So much cool stuff! Make sure to check out @richardholdenerperformance for deals on LS turbos, cams, springs, lifters, waste
20.8K views11 months ago
FacebookRichard Holdener
🚨 REVHIGH EDUCATIONAL: 821 HEADS — CHECK YOUR VALVE INSERTS!
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🚨 REVHIGH EDUCATIONAL: 821 HEADS — CHECK YOUR VALVE INSERTS!
102 views1 month ago
YouTubeRevhigh Performance Tuning
6.0 lq4 Zephyr 821 heads
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6.0 lq4 Zephyr 821 heads
486 viewsApr 3, 2020
YouTubeBoostdCapri
0:22
OUTLAW 821 CNC HEADS $1600 with core swap. | Outlaw Race Engines
283 viewsAug 26, 2025
FacebookOutlaw Race Engines
0:32
LS3 821 heads in for CNC porting. Need a set of LS heads ported call or message us for pricing options. | CNC-Motorsports
391.3K viewsFeb 2, 2022
FacebookCNC-Motorsports
0:44
FIND CORRECT HEAD #821 #kpop #whatitsoundslike #kpopdemonhunters
33.2K views6 months ago
YouTubeMr_Sus
0:27
Ported heads that PERFORM! Link https://frankensteined.net/products/821-and-823-ls3-stage-2-porting-service-set #getfed #ls #horsepower | Frankenstein Engine Dynamics LLC
66K views10 months ago
FacebookFrankenstein Engine Dynamics LLC
0:07
Over with Steve Morris and the great guys at @stevemorrisengines testing some @afr_heads on a 6.2L LS. We will compare the stock 821 heads to the AFR rec ports NA and with boost from @vortechsuperchargers YSI! Very cool stuff! #afr #vortech #stevemorrisengines make sure to check out @richardholdenerperformance for LS performance parts or if you want to get serious about power-go see @stevemorrisengines (they do big boy stuff). | Richard Holdener
12.5K viewsOct 21, 2025
FacebookRichard Holdener
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LS3/821 assembly. We are the cylinder head porting shop for the drag and circle track racers, or any racer! Using our 5-axis CNC, we help maximize horsepower. Ph: (225) 485-7076 Web: www.calhounperformance.com #calhounperformance #racers | Calhoun Performance
858 views9 months ago
FacebookCalhoun Performance
0:45
FIND CORRECT HEAD #821 #kpop #golden #huntrix #kpopdemonhunters #fanremake
15.2K views2 months ago
YouTubeMr_Sus
0:42
FIND CORRECT HEAD #821 #kpop #sodapop #sajaboys #kpopdemonhunters
7.5K views1 month ago
YouTubeMr_Sus
3:04:14
Lapping valves in this 2013 LS3 Corvette cylinder head live with Automotive Mayhem. 821 823 L92 cast
14K views2 months ago
YouTubeAutomotive Mayhem
0:43
FIND CORRECT HEAD #821 #kpop #sodapop #sajaboys
27.8K views5 months ago
YouTubeMr_Sus
0:41
FIND CORRECT HEAD #821 #kpop #sodapop #sajaboys
10.9K views6 months ago
YouTubeMr_Sus
0:43
FIND CORRECT HEAD #821 #kpop #sodapop #sajaboys 1
25.3K views4 months ago
YouTubeMr_Sus
0:41
FIND CORRECT HEAD #821 #kpop #sodapop #sajaboys
5K views5 months ago
YouTubeMr_Sus
0:46
FIND CORRECT HEAD #821 #kpop #sodapop #sajaboys #huntrix
4.8K views2 months ago
YouTubeMr_Sus
1:08:29
MILLED REC PORTS VS CATH LET'S TALK TECH
3.7K views7 months ago
YouTubeRichard Holdener
1:19
LQ4 vs LQ9 Compression vs Head Swaps
11.9K views6 months ago
YouTubeRichard Holdener
1:02
NS 277'S Power Heads Westbound to Portlock Yard
35 views2 months ago
YouTubeVa.Railfan
11:29
All 20 LS Cylinder Heads Explained (What's Best For Your Project?).
438K viewsOct 24, 2023
YouTubeAuto Guild
0:33
6.0 LS with Comp 54-469-11 cam
2.9K viewsAug 8, 2025
YouTubeNovaBrando
0:38
6.0 LS engine bored to 6.2 testing
2.3K viewsApr 20, 2023
YouTubeHills_Auto_Service
30:51
Ducati Monster 821 -- Part 43 -- Assembling cylinder heads - Final valve clearance
5.5K viewsDec 23, 2024
YouTubeZAMsChannel
4:22
821. Talking Heads - Psycho Killer - 1977 - 5.1 surround (STEREO in)
6 months ago
ok.ru💿Большая коллекция рок-музыки и металла.
1:36
Lq9 with 821 heads and tsp stage 3 cam
1.5K viewsDec 31, 2020
YouTubeBoostdCapri
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