Threads Tagged with 821

2012, 60, 821, cam, comp, flat, head, heads, l92, lift, ls2, ls3, max, pistons, top

6.0L flat pistons with LS3 heads?

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flynlow3 on May 10, 2012

Mar 18, 2018 12:19 AM
by sixty9fordkiller

22

38,009

14, 364, 821, 92, camaro, casting, cyl, engine, heads, l92, ls, ls3, ls9, lsa, mile, time

L92, LS3, LSA and LS9 low mile cyl heads

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See5 on Sep 22, 2010

Dec 12, 2014 07:34 PM
by RONIN LSX

321

52,202

New LS1 Owners - Newbie Tech

60, 821, cam, carb, checking, choice, cost, cylinder, heads, ly6, pressure

intake/carb choice & size? Ly6 with cnc'd 821's.

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boundbyz on Apr 2, 2014

Apr 8, 2014 05:36 PM
by Prorac1

21

3,869

Carbureted LSX Forum

216, 239247, 624624, 821, build, cam, chevy, compcam, custom, grind, heads, intake, lq4, ls3, mileage, pat, speced

Built LQ4 power/mpg

mcmuscle3 on Feb 22, 2014

Feb 22, 2014 09:27 PM
by garygnu

1

1,602

18, 418, 500, 821, buggy, chassis, fbody, heads, lq4, ls1tech, ls3, mi, ported, project, stroker, tennessee, times

Recipe for 500+ FT LBS???

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StreetGliderX on Dec 16, 2013

Feb 17, 2014 03:54 PM
by 99peweterls1

33

11,114

Dynamometer Results & Comparisons

0, 0280, 0280158, 0280158821, 158, 210lb, 280, 821, bosch, e85, fic, fuel, hp, injectors, ls

FIC2000 210lb/hr Bosch injectors 0 280 158 821 Brand New. Price lowered!

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Joe6pt0 on Oct 19, 2013

Nov 13, 2013 01:43 PM
by Joe6pt0

24

6,859

821, bottom, cam, camaro, comp, end, f1x, fell, gen, heads, iii, lq4, ls1tech, stock, tonight

Stock Bottom End record fell tonight!!!!!

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Carter01 on May 31, 2013

Jun 25, 2013 08:23 PM
by Blackpanther99

110

17,109

Nitrous Oxide

53, 821, aftermarket, cammed, daily, driven, forum, forums, gears, head, heads, headscam, lq4, ls1tech, notched

first time out lq4 5.3 heads cam 6speed

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83ripper on Nov 21, 2012

Jun 17, 2013 10:23 PM
by 83ripper

93

12,188

Conversions & Swaps

821, adders, castings, cheap, cnc, heads, ls3, ported, power, sdpc

LS3 CNC Ported Heads SDPC 821 Castings NEW

Jablowme on Oct 2, 2012

Oct 21, 2012 01:25 PM
by Jablowme

19

3,745

LS3 821 Casting Heads, COMPLETE w/Rockers

tex1978 on Sep 10, 2012

Sep 10, 2012 10:35 AM
by tex1978

0

453

821, acc, accesories, block, end, heads, intake, lq4, ls3, motor, move, putting, top, topend, truck

Lq4 with ls3 top end

Bigchevymontecarloss on Aug 11, 2012

Aug 11, 2012 05:49 PM
by Bigchevymontecarloss

3

1,882

Conversions & Swaps

821, casting, castings, gm, head, heads, l92, lq4, ls, sale

l92 style head 821 casting

mrclean200518 on Apr 13, 2012

Jun 16, 2012 11:20 AM
by Na306StAnG

11

1,556

0821, 2004, 821, 823, casting, castings, dates, difference, gm, head, heads, l92, ls3, ls6, number, vs

0821 head castings?

StrokerLS1 on Apr 9, 2009

Jun 4, 2012 05:01 PM
by litle88

17

83,840

Generation III Internal Engine

2004, 450rwhp, 821, block, head, heads, lifters, lq4, ls3, patrick, run

2004 lq4 what else??

weircc on May 29, 2012

May 31, 2012 02:22 AM
by Paul57

3

1,019

821, blowthrough, brpv, carb, end, falls, front, heads, launch, lifts, ls1, ls3, right, running, spec, tech

big disapointment

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jgillen91 on Apr 4, 2012

Apr 20, 2012 03:10 PM
by toxic99

36

4,442

Carbureted LSX Forum

125, 12cc, 243, 248256, 60, 821, cam, combo, dome, head, hp, lq4, lsxr, piston, wiseco

HP guestimates of new combo

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Kwikcad500 on Mar 1, 2011

Apr 10, 2012 09:10 AM
by Prorac1

67

11,081

Carbureted LSX Forum

821, 823, cars, casting, castings, gm, head, heads, l92, ls1, ls3, s, specifications, specs, stock

L92 casting #823?

streetknight2 on Nov 21, 2011

Nov 24, 2011 06:46 PM
by cam

2

4,228

821, 823, block, blocks, camaro, denali, engine, heads, l92, long, ls2, ls3, sale, short, shortblock

LS3 short block

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4doortypels on Nov 2, 2011

Nov 21, 2011 10:31 PM
by 4doortypels

21

10,906

62, 821, 823, casting, cylinder, heads, ls3

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

821, buy, code, engine, heads, ls, ls1tech, ls3, vin

New LS3 821 Heads

Ari G on Oct 26, 2011

Oct 26, 2011 12:10 PM
by Ari G

0

1,127

821, bare, chevy, heads, ls, ls3, sale, vette

FS: Vette LS3 821 Heads with rockers

jakebdb56 on Aug 17, 2011

Sep 30, 2011 03:12 PM
by Tootall

9

1,694

402, 5364, 821, 823, casting, castings, cylinder, gm, head, heads, l92, ls3, material, number, numbers, search

LS3 or L92....how do I tell?

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fast377 on Jul 12, 2008

Sep 27, 2011 08:30 PM
by 97badass

43

77,330

12629036, 12629063, 821, casting, cylinder, fs, gm, gmpp, head, heads, ls3

FS: LS3 Heads Brand New In Box

mrtywalsh on Aug 15, 2011

Sep 14, 2011 03:47 PM
by roach4047

6

1,350

243, 821, firebird, heads, ls3, pontiac, springs

LS3 and 243 heads

ccajun4real on Jul 14, 2011

Aug 19, 2011 12:09 PM
by ccajun4real

14

1,815

821 castings bolt on to 98 LS1 ??

Bowtiedford on Jul 28, 2011

Jul 28, 2011 05:07 PM
by Bowtiedford

0

521

821, cc, chamber, chambers, combustion, compressor, engine, head, heads, ls1, ls3, size, spring, tech, valve

ls3 821 head question

blackbullet#1 on Jul 20, 2011

Jul 20, 2011 09:39 PM
by usmcz28

1

1,686

Generation III Internal Engine

1000, 821, build, compression, e85, fit, gas, gm, head, heads, high, holley, hp, ls, ls3, pump, setup, studs

My high compression 364/LS3 heads build

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Kwikcad500 on May 2, 2011

Jun 6, 2011 09:56 AM
by Kwikcad500

39

23,562

226cc, 231239, 243, 243s, 821, ai, cam, compared, heads, ls1, milled

upgrade 243s

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zacht on May 19, 2011

Jun 4, 2011 02:59 PM
by quiet_storm98

25

2,762

Generation III Internal Engine

821, 823, block, cons, head, heads, l92, ls2, ls3, ls3l92, number, pn, procharger, pros, putting

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

5364, 821, bore, car, cover, cylinder, engine, head, heads, identify, ls, ls3, minimum, motors, vehicles

LS3 engine\car HELP please

nicentech on May 19, 2011

May 23, 2011 02:59 PM
by 1lejohn

7

5,820

821, 823, bare, casting, difference, differences, hea, head, heads, l92, ls3, number, part, port, valve

l92/ls3 head differences..

ls-won-84c10 on Feb 21, 2011

Mar 18, 2011 02:49 PM
by futureuser

15

24,780

2010, 3ls, 821, buy, camaro, casting, cc, cylinder, head, heads, ls, ls3, ls9, number, part

2010 camaro ls-3 head casting...

Y2KZX12R on Mar 6, 2011

Mar 8, 2011 06:04 AM
by Y2KZX12R

3

3,508

5364, 60, 821, 823, casting, chamber, chevy, combustion, deffernce, diffetences, gm, heads, l92, ls1tech, spring

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

821, bare, forsale, head, heads, ls3, number, part, sale

Bare LS3 heads

Bad Chad on Jan 5, 2011

Jan 6, 2011 04:25 PM
by Bad Chad

1

845

821, casting, head, heads, ls, ls1tech, mast, number, splayed, valve

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

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

10, 1041, 243, 821, comp, compresion, compression, engine, head, heads, ls2, ls3, ported, ratio, ration, ratios, stock, vs

LS2-LS3 compression ratio

Mike Cordero on Nov 10, 2010

Nov 20, 2010 08:57 PM
by redsap05

4

21,562

821, flow, gains, hc, head, heads, ls3, nc, numbers, package, polishing, ported, porting, power, stock

LS3 head Flow Stock, to ported

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Jenson on Aug 22, 2010

Sep 24, 2010 08:31 AM
by Jenson

22

35,067

821, ca, california, day, downey, dyno, greg, gregracersedgetuningnet, gregret, ls1tech, name, phlox, ret, screen, st

RET Dyno Day 8/21/10

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Greg@RET on Aug 13, 2010

Aug 23, 2010 03:06 PM
by Greg@RET

32

2,605

Western Members

821, accessories, chevy, corvette, edelbrock, excessories, heads, install, intake, ls3, spacing, truck

LS3 with truck intake and accessories

nycblazer on Dec 19, 2009

Dec 19, 2009 04:54 PM
by Jimbo1367

1

1,289

821, 823, forsale, gm, head, heads, ls1, ls1tech, ls3, rockers, sale, see5, sell, stock, texas

LS3 heads for sale

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See5 on Oct 11, 2009

Nov 25, 2009 06:55 AM
by See5

25

9,148

LSX Parts For Sale

07, 821, aftermarket, casting, corvette, cylinder, exhaust, filled, head, heads, l92, ls, ls3, sale, sodium, valve

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

60, 821, block, casting, corvette, engine, gm, head, l92, location, ls1, ls2, ls3, ls6, number, numbers

Urgent Help [Block casting numbers]

Pete walsh on Jun 19, 2009

Jun 23, 2009 11:19 AM
by HSV-GTS-300

5

56,945

0821, 821, 823, casting, castings, cc, gm, heads, hemi, l92, ls1tech, ls3, lsx, milling, number

L92 heads, Which Casting # is better?

STEEPSS on May 20, 2009

May 26, 2009 02:28 PM
by the_merv

7

24,519

821, asa, cam, gm, heads, ls1, ls3, recommendations, specs, spring, springs, stock, stroker, valve, valves

Can LS3/821 heads handle this cam?

g6t6o on Mar 13, 2009

Mar 18, 2009 09:18 AM
by 108dragon

9

4,881

821, airflow, casting, engine, flow, head, heads, l92, ls1tech, ls3, number, rate, total

head question

Kguy on Mar 3, 2009

Mar 6, 2009 02:36 PM
by 108dragon

12

603

5264, 821, casting, cylinder, gm, head, ls1, ls3, numbers

head casting numbers

1320 killer on Jan 19, 2009

Jan 19, 2009 10:10 PM
by 1320 killer

2

6,321

0821, 0821heads, 5364, 821, casting, data, flow, gm, head, heads, identifying, l92, ls1tech, ls2, ls3, ls3l92

Need help identifying 0821 heads

QUEST4-10S on Aug 4, 2008

Oct 6, 2008 01:53 PM
by GRFMotorsports

1

10,441