Log In
Register
Forums
WELCOME TO LS1TECH
Introductions & Greetings
General LSX Automobile Discussion
New LS1 Owners - Newbie Tech
User Support & Resources
Featured Vehicles & Products
New Products Showcase
Sponsor Vehicle Projects & Shop Tours
Staff Vehicles Showcase
LS1-LS2-LS3-LS6-LS7 PERFORMANCE
Generation III Internal Engine
Generation IV Internal Engine
Generation V Internal Engine
Generation III External Engine
Generation IV External Engine
Generation V External Engine
Conversions & Swaps
PCM Diagnostics & Tuning
Fueling & Injection
Carbureted LSX Forum
Forced Induction
Nitrous Oxide
Dynamometer Results & Comparisons
Tools & Fabrication
Advanced Engineering Tech
SBC-BBC-LT1-LT4 PERFORMANCE
LT1-LT4 Modifications
Small Block & Big Block Chevy Specific
CHASSIS, SUSPENSION, APPEARANCE
General Maintenance & Repairs
Automatic Transmission
Manual Transmission
Gears & Axles
Suspension & Brakes
Wheels & Tires
Appearance & Detailing
Paint & Body Work
Wiring, Stereo & Electronics
Gen 5 Camaro 2010-2015 Forum
Gen 5 Camaro External Bolt-On Tech
Gen 5 Racing Tech
Gen 5 Camaro Power-Adder Tech
Gen 5 Camaro Drivetrain Tech
Gen 5 Camaro Suspension Tech
Gen 5 Camaro Tuning, Diagnostics, Dyno results
Gen 5 Camaro Racing Tech, Results
Gen 5 Camaro Special Edition Vehicles
VEHICLE SPECIFIC FORUMS
Gen 6 Camaro 2016+ Forum
Pontiac G8 2008-09 & Chevrolet SS 2014+
Chevrolet Camaro 1967-2002
Pontiac Firebird 1967-2002
Corvette Performance
Pontiac GTO 2004-2006
Cadillac CTS-V 2004-2007 (Gen I)
Cadillac CTS-V 2009-2015 (Gen 2)
Cadillac CTS-V 2016 - (Gen 3)
LS4 Performance
Holden Performance
Special Edition Vehicles
Convertible Vehicles
RACING DEPARTMENT
Drag Racing Tech
Drag Racing Results
12 Second Club
11 Second Club
10 Second Club
Single Digit Club
Road Racing
Street Racing & Kill Stories
NATIONAL EVENTS
Hot Rod Power Tour/ Pump Gas Drags/ Drag Week
LTX Shootout
Holley LS Fest
Other Special Events
SALES DEPARTMENT
Marketplace
Sponsor Sales & Specials
Sponsor Group Purchases
Parts Classifieds
Parts Wanted
Vehicle Classifieds
Vehicles Wanted
Negative Trader Feedback
What is it Worth?
Non-Automotive Classifieds
Automotive Careers
LS1TECH Sponsor Feedback
WEBSITE ACTIVITY FORUMS
Automotive News, Media & Press
Newsletter Archive
Multimedia Exchange
REGIONAL FORUMS
Military Hotrod Club
Texas Members
Midwestern Members
Eastern Members
Northwest Members
Western Members
Southern Members
Florida Members
Canadian Members
International Members
News
Gallery
Tools
Car Payment Calculator
Tire Rim Calculator
Vin Decoder
Recalls
Technical Service Bulletins (TSBs)
Members List
Live Feed
Marketplace
Vendor Directory
Become a Vendor
Marketplace
Vendor Marketplace
New Posts
How-Tos
View Dark Mode
Please register or login to enable Dark Mode.
Log In
Register
Threads
Google
Threads
Posts
Advanced
LS1TECH - Camaro and Firebird Forum Discussion
Log In
|
Register
Dark Mode
Please register or login to enable Dark Mode.
About Us
Manage Preferences
Archive
Advertising
Cookie Policy
Privacy Statement
Terms of Service
Your Privacy Choices
Affiliate Disclosure
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
×
Log In
Forgot your Password?
By logging into your account, you agree to our
Terms of Use
and
Privacy Policy
, and to the use of cookies as described therein.
or
Login with Google
Login with Facebook
LS1TECH - Camaro and Firebird Forum Discussion
Tags
Threads Tagged with
821
Community Links
Social Groups
Pictures & Albums
Members
Search Forums
Show Threads
Show Posts
Tag Search
Advanced Search
Find All Liked Posts
Go to Page...
Page 1 of 2
1
2
>
Threads Tagged with
821
Thread / Thread Starter
Last Post
Replies
Views
Forum
LQ9 243/799 vs 821/823 heads?
(
1
2
)
67rally
on 01-23-2013
03-17-2021
12:25 AM
by
G Atsma
22
103,290
Generation III External Engine
6.0L flat pistons with LS3 heads?
(
1
2
)
flynlow3
on 05-10-2012
03-18-2018
12:19 AM
by
sixty9fordkiller
22
33,403
Generation IV Internal Engine
L92, LS3, LSA and LS9 low mile cyl heads
(
1
2
3
4
5
...
Last Page
)
See5
on 09-22-2010
12-12-2014
07:34 PM
by
RONIN LSX
321
50,299
Parts Classifieds
intake/carb choice & size? Ly6 with cnc'd 821's.
(
1
2
)
boundbyz
on 04-02-2014
04-08-2014
05:36 PM
by
Prorac1
21
3,611
Carbureted LSX Forum
Built LQ4 power/mpg
mcmuscle3
on 02-22-2014
02-22-2014
09:27 PM
by
garygnu
1
1,494
New LS1 Owners - Newbie Tech
Recipe for 500+ FT LBS???
(
1
2
)
StreetGliderX
on 12-16-2013
02-17-2014
03:54 PM
by
99peweterls1
33
10,291
Dynamometer Results & Comparisons
FIC2000 210lb/hr Bosch injectors 0 280 158 821 Brand New. Price lowered!
(
1
2
)
Joe6pt0
on 10-19-2013
11-13-2013
01:43 PM
by
Joe6pt0
24
6,635
Parts Classifieds
Stock Bottom End record fell tonight!!!!!
(
1
2
3
4
5
...
Last Page
)
Carter01
on 05-31-2013
06-25-2013
08:23 PM
by
Blackpanther99
110
16,286
Nitrous Oxide
first time out lq4 5.3 heads cam 6speed
(
1
2
3
4
5
)
83ripper
on 11-21-2012
06-17-2013
10:23 PM
by
83ripper
93
11,236
Conversions & Swaps
LS3 CNC Ported Heads SDPC 821 Castings NEW
Jablowme
on 10-02-2012
10-21-2012
01:25 PM
by
Jablowme
19
3,525
Parts Classifieds
LS3 821 Casting Heads, COMPLETE w/Rockers
tex1978
on 09-10-2012
09-10-2012
10:35 AM
by
tex1978
0
430
Parts Classifieds
Lq4 with ls3 top end
Bigchevymontecarloss
on 08-11-2012
08-11-2012
05:49 PM
by
Bigchevymontecarloss
3
1,800
Conversions & Swaps
l92 style head 821 casting
mrclean200518
on 04-13-2012
06-16-2012
11:20 AM
by
Na306StAnG
11
1,451
Parts Classifieds
0821 head castings?
StrokerLS1
on 04-09-2009
06-04-2012
05:01 PM
by
litle88
17
74,729
Generation IV Internal Engine
2004 lq4 what else??
weircc
on 05-29-2012
05-31-2012
02:22 AM
by
Paul57
3
960
Generation III Internal Engine
big disapointment
(
1
2
)
jgillen91
on 04-04-2012
04-20-2012
03:10 PM
by
toxic99
36
4,219
Carbureted LSX Forum
HP guestimates of new combo
(
1
2
3
4
)
Kwikcad500
on 03-01-2011
04-10-2012
09:10 AM
by
Prorac1
67
10,520
Carbureted LSX Forum
L92 casting #823?
streetknight2
on 11-21-2011
11-24-2011
06:46 PM
by
cam
2
3,886
Generation IV Internal Engine
LS3 short block
(
1
2
)
4doortypels
on 11-02-2011
11-21-2011
10:31 PM
by
4doortypels
21
10,777
Parts Classifieds
wanted 6.2 or ls3 any casting 821 823 cylinder head only 1 needed used l92
t racing
on 11-04-2011
11-04-2011
02:37 PM
by
t racing
0
760
Parts Wanted
New LS3 821 Heads
Ari G
on 10-26-2011
10-26-2011
12:10 PM
by
Ari G
0
1,104
Parts Classifieds
FS: Vette LS3 821 Heads with rockers
jakebdb56
on 08-17-2011
09-30-2011
03:12 PM
by
Tootall
9
1,581
Parts Classifieds
LS3 or L92....how do I tell?
(
1
2
3
)
fast377
on 07-12-2008
09-27-2011
08:30 PM
by
97badass
43
72,736
Generation IV External Engine
FS: LS3 Heads Brand New In Box
mrtywalsh
on 08-15-2011
09-14-2011
03:47 PM
by
roach4047
6
1,305
Parts Classifieds
LS3 and 243 heads
ccajun4real
on 07-14-2011
08-19-2011
12:09 PM
by
ccajun4real
14
1,791
Parts Classifieds
821 castings bolt on to 98 LS1 ??
Bowtiedford
on 07-28-2011
07-28-2011
05:07 PM
by
Bowtiedford
0
479
Generation III External Engine
ls3 821 head question
blackbullet#1
on 07-20-2011
07-20-2011
09:39 PM
by
usmcz28
1
1,614
Generation IV Internal Engine
My high compression 364/LS3 heads build
(
1
2
)
Kwikcad500
on 05-02-2011
06-06-2011
09:56 AM
by
Kwikcad500
39
22,028
Generation III Internal Engine
upgrade 243s
(
1
2
)
zacht
on 05-19-2011
06-04-2011
02:59 PM
by
quiet_storm98
25
2,474
Generation III Internal Engine
LS3 L92 Block and Head numbers and pro's and cons of each
Jablowme
on 06-03-2011
06-03-2011
05:35 PM
by
Jablowme
4
2,634
Generation IV Internal Engine
LS3 engine\car HELP please
nicentech
on 05-19-2011
05-23-2011
02:59 PM
by
1lejohn
7
5,573
Generation IV Internal Engine
l92/ls3 head differences..
ls-won-84c10
on 02-21-2011
03-18-2011
02:49 PM
by
futureuser
15
22,754
Generation IV External Engine
2010 camaro ls-3 head casting...
Y2KZX12R
on 03-06-2011
03-08-2011
06:04 AM
by
Y2KZX12R
3
3,271
Generation IV Internal Engine
L92 Casting #'s - what's the diff?
cdig
on 01-19-2011
01-20-2011
09:23 PM
by
tsnow678
5
18,929
Conversions & Swaps
Bare LS3 heads
Bad Chad
on 01-05-2011
01-06-2011
04:25 PM
by
Bad Chad
1
807
Parts Classifieds
Thinking of buying these heads. How does the port work look?
06blackGTO
on 01-04-2011
01-05-2011
03:00 PM
by
06blackGTO
14
1,258
Generation IV Internal Engine
looking for 821 casting ls3 heads
ls3s10
on 12-21-2010
12-21-2010
01:54 PM
by
ls3s10
0
284
Parts Wanted
821 ls3 heads
ls3s10
on 11-26-2010
11-26-2010
09:49 AM
by
94 guy
1
391
Parts Wanted
LS2-LS3 compression ratio
Mike Cordero
on 11-10-2010
11-20-2010
08:57 PM
by
redsap05
4
21,031
Generation IV External Engine
LS3 head Flow Stock, to ported
(
1
2
)
Jenson
on 08-22-2010
09-24-2010
08:31 AM
by
Jenson
22
32,604
Generation IV Internal Engine
RET Dyno Day 8/21/10
(
1
2
)
Greg@RET
on 08-13-2010
08-23-2010
03:06 PM
by
Greg@RET
32
2,430
Western Members
LS3 with truck intake and accessories
nycblazer
on 12-19-2009
12-19-2009
04:54 PM
by
Jimbo1367
1
1,173
Generation IV External Engine
LS3 heads for sale
(
1
2
)
See5
on 10-11-2009
11-25-2009
06:55 AM
by
See5
25
8,973
LSX Parts For Sale
F/S LS3 Corvette heads 821 casting complete
108dragon
on 07-24-2009
07-31-2009
12:45 AM
by
denali_on_26's
9
1,908
LSX Parts For Sale
Urgent Help [Block casting numbers]
Pete walsh
on 06-19-2009
06-23-2009
11:19 AM
by
HSV-GTS-300
5
47,267
Generation IV Internal Engine
L92 heads, Which Casting # is better?
STEEPSS
on 05-20-2009
05-26-2009
02:28 PM
by
the_merv
7
24,039
Generation IV External Engine
Can LS3/821 heads handle this cam?
g6t6o
on 03-13-2009
03-18-2009
09:18 AM
by
108dragon
9
4,069
Generation IV Internal Engine
head question
Kguy
on 03-03-2009
03-06-2009
02:36 PM
by
108dragon
12
540
Generation III External Engine
head casting numbers
1320 killer
on 01-19-2009
01-19-2009
10:10 PM
by
1320 killer
2
5,097
Generation III External Engine
Need help identifying 0821 heads
QUEST4-10S
on 08-04-2008
10-06-2008
01:53 PM
by
GRFMotorsports
1
8,754
Generation IV Internal Engine
Page 1 of 2
1
2
>
All times are GMT -5. The time now is
12:51 AM
.