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LS1TECH - Camaro and Firebird Forum Discussion
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LS1TECH - Camaro and Firebird Forum Discussion
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Threads Tagged with
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LQ9 243/799 vs 821/823 heads?
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1
2
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67rally
on Jan 23, 2013
Aug 10, 2025
09:31 AM
by
G Atsma
24
121,468
Generation III External Engine
6.0L flat pistons with LS3 heads?
(
1
2
)
flynlow3
on May 10, 2012
Mar 18, 2018
12:19 AM
by
sixty9fordkiller
22
38,009
Generation IV Internal Engine
L92, LS3, LSA and LS9 low mile cyl heads
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1
2
3
4
5
...
Last Page
)
See5
on Sep 22, 2010
Dec 12, 2014
07:34 PM
by
RONIN LSX
321
52,202
Parts Classifieds
intake/carb choice & size? Ly6 with cnc'd 821's.
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1
2
)
boundbyz
on Apr 2, 2014
Apr 8, 2014
05:36 PM
by
Prorac1
21
3,869
Carbureted LSX Forum
Built LQ4 power/mpg
mcmuscle3
on Feb 22, 2014
Feb 22, 2014
09:27 PM
by
garygnu
1
1,602
New LS1 Owners - Newbie Tech
Recipe for 500+ FT LBS???
(
1
2
)
StreetGliderX
on Dec 16, 2013
Feb 17, 2014
03:54 PM
by
99peweterls1
33
11,114
Dynamometer Results & Comparisons
FIC2000 210lb/hr Bosch injectors 0 280 158 821 Brand New. Price lowered!
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1
2
)
Joe6pt0
on Oct 19, 2013
Nov 13, 2013
01:43 PM
by
Joe6pt0
24
6,859
Parts Classifieds
Stock Bottom End record fell tonight!!!!!
(
1
2
3
4
5
...
Last Page
)
Carter01
on May 31, 2013
Jun 25, 2013
08:23 PM
by
Blackpanther99
110
17,109
Nitrous Oxide
first time out lq4 5.3 heads cam 6speed
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1
2
3
4
5
)
83ripper
on Nov 21, 2012
Jun 17, 2013
10:23 PM
by
83ripper
93
12,188
Conversions & Swaps
LS3 CNC Ported Heads SDPC 821 Castings NEW
Jablowme
on Oct 2, 2012
Oct 21, 2012
01:25 PM
by
Jablowme
19
3,745
Parts Classifieds
LS3 821 Casting Heads, COMPLETE w/Rockers
tex1978
on Sep 10, 2012
Sep 10, 2012
10:35 AM
by
tex1978
0
453
Parts Classifieds
Lq4 with ls3 top end
Bigchevymontecarloss
on Aug 11, 2012
Aug 11, 2012
05:49 PM
by
Bigchevymontecarloss
3
1,882
Conversions & Swaps
l92 style head 821 casting
mrclean200518
on Apr 13, 2012
Jun 16, 2012
11:20 AM
by
Na306StAnG
11
1,556
Parts Classifieds
0821 head castings?
StrokerLS1
on Apr 9, 2009
Jun 4, 2012
05:01 PM
by
litle88
17
83,840
Generation IV Internal Engine
2004 lq4 what else??
weircc
on May 29, 2012
May 31, 2012
02:22 AM
by
Paul57
3
1,019
Generation III Internal Engine
big disapointment
(
1
2
)
jgillen91
on Apr 4, 2012
Apr 20, 2012
03:10 PM
by
toxic99
36
4,442
Carbureted LSX Forum
HP guestimates of new combo
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4
)
Kwikcad500
on Mar 1, 2011
Apr 10, 2012
09:10 AM
by
Prorac1
67
11,081
Carbureted LSX Forum
L92 casting #823?
streetknight2
on Nov 21, 2011
Nov 24, 2011
06:46 PM
by
cam
2
4,228
Generation IV Internal Engine
LS3 short block
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1
2
)
4doortypels
on Nov 2, 2011
Nov 21, 2011
10:31 PM
by
4doortypels
21
10,906
Parts Classifieds
wanted 6.2 or ls3 any casting 821 823 cylinder head only 1 needed used l92
t racing
on Nov 4, 2011
Nov 4, 2011
02:37 PM
by
t racing
0
799
Parts Wanted
New LS3 821 Heads
Ari G
on Oct 26, 2011
Oct 26, 2011
12:10 PM
by
Ari G
0
1,127
Parts Classifieds
FS: Vette LS3 821 Heads with rockers
jakebdb56
on Aug 17, 2011
Sep 30, 2011
03:12 PM
by
Tootall
9
1,694
Parts Classifieds
LS3 or L92....how do I tell?
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1
2
3
)
fast377
on Jul 12, 2008
Sep 27, 2011
08:30 PM
by
97badass
43
77,330
Generation IV External Engine
FS: LS3 Heads Brand New In Box
mrtywalsh
on Aug 15, 2011
Sep 14, 2011
03:47 PM
by
roach4047
6
1,350
Parts Classifieds
LS3 and 243 heads
ccajun4real
on Jul 14, 2011
Aug 19, 2011
12:09 PM
by
ccajun4real
14
1,815
Parts Classifieds
821 castings bolt on to 98 LS1 ??
Bowtiedford
on Jul 28, 2011
Jul 28, 2011
05:07 PM
by
Bowtiedford
0
521
Generation III External Engine
ls3 821 head question
blackbullet#1
on Jul 20, 2011
Jul 20, 2011
09:39 PM
by
usmcz28
1
1,686
Generation IV Internal Engine
My high compression 364/LS3 heads build
(
1
2
)
Kwikcad500
on May 2, 2011
Jun 6, 2011
09:56 AM
by
Kwikcad500
39
23,562
Generation III Internal Engine
upgrade 243s
(
1
2
)
zacht
on May 19, 2011
Jun 4, 2011
02:59 PM
by
quiet_storm98
25
2,762
Generation III Internal Engine
LS3 L92 Block and Head numbers and pro's and cons of each
Jablowme
on Jun 3, 2011
Jun 3, 2011
05:35 PM
by
Jablowme
4
2,748
Generation IV Internal Engine
LS3 engine\car HELP please
nicentech
on May 19, 2011
May 23, 2011
02:59 PM
by
1lejohn
7
5,820
Generation IV Internal Engine
l92/ls3 head differences..
ls-won-84c10
on Feb 21, 2011
Mar 18, 2011
02:49 PM
by
futureuser
15
24,780
Generation IV External Engine
2010 camaro ls-3 head casting...
Y2KZX12R
on Mar 6, 2011
Mar 8, 2011
06:04 AM
by
Y2KZX12R
3
3,508
Generation IV Internal Engine
L92 Casting #'s - what's the diff?
cdig
on Jan 19, 2011
Jan 20, 2011
09:23 PM
by
tsnow678
5
20,610
Conversions & Swaps
Bare LS3 heads
Bad Chad
on Jan 5, 2011
Jan 6, 2011
04:25 PM
by
Bad Chad
1
845
Parts Classifieds
Thinking of buying these heads. How does the port work look?
06blackGTO
on Jan 4, 2011
Jan 5, 2011
03:00 PM
by
06blackGTO
14
1,382
Generation IV Internal Engine
looking for 821 casting ls3 heads
ls3s10
on Dec 21, 2010
Dec 21, 2010
01:54 PM
by
ls3s10
0
307
Parts Wanted
821 ls3 heads
ls3s10
on Nov 26, 2010
Nov 26, 2010
09:49 AM
by
94 guy
1
429
Parts Wanted
LS2-LS3 compression ratio
Mike Cordero
on Nov 10, 2010
Nov 20, 2010
08:57 PM
by
redsap05
4
21,562
Generation IV External Engine
LS3 head Flow Stock, to ported
(
1
2
)
Jenson
on Aug 22, 2010
Sep 24, 2010
08:31 AM
by
Jenson
22
35,067
Generation IV Internal Engine
RET Dyno Day 8/21/10
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1
2
)
Greg@RET
on Aug 13, 2010
Aug 23, 2010
03:06 PM
by
Greg@RET
32
2,605
Western Members
LS3 with truck intake and accessories
nycblazer
on Dec 19, 2009
Dec 19, 2009
04:54 PM
by
Jimbo1367
1
1,289
Generation IV External Engine
LS3 heads for sale
(
1
2
)
See5
on Oct 11, 2009
Nov 25, 2009
06:55 AM
by
See5
25
9,148
LSX Parts For Sale
F/S LS3 Corvette heads 821 casting complete
108dragon
on Jul 24, 2009
Jul 31, 2009
12:45 AM
by
denali_on_26's
9
1,987
LSX Parts For Sale
Urgent Help [Block casting numbers]
Pete walsh
on Jun 19, 2009
Jun 23, 2009
11:19 AM
by
HSV-GTS-300
5
56,945
Generation IV Internal Engine
L92 heads, Which Casting # is better?
STEEPSS
on May 20, 2009
May 26, 2009
02:28 PM
by
the_merv
7
24,519
Generation IV External Engine
Can LS3/821 heads handle this cam?
g6t6o
on Mar 13, 2009
Mar 18, 2009
09:18 AM
by
108dragon
9
4,881
Generation IV Internal Engine
head question
Kguy
on Mar 3, 2009
Mar 6, 2009
02:36 PM
by
108dragon
12
603
Generation III External Engine
head casting numbers
1320 killer
on Jan 19, 2009
Jan 19, 2009
10:10 PM
by
1320 killer
2
6,321
Generation III External Engine
Need help identifying 0821 heads
QUEST4-10S
on Aug 4, 2008
Oct 6, 2008
01:53 PM
by
GRFMotorsports
1
10,441
Generation IV Internal Engine
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