Threads Tagged with 81l

2003, 2500, 81, 81l, engine, forums, gmc, hd, liter, noise, push, revved, rods, rokers, ticking

02 8.1l knocking/ticking HELP

2500HD8.1 on 12-16-2012

03-10-2020 03:30 PM
by Brandon Walbeck

8

17,763

2001, 2004, 81, 81l, chevy, dual, engines, exhaust, fuel, gmc, improement, improvement, mileage, mpg, programmers, saving, upgrades, vortec

8.1L Fuel Improvement/power upgrades

(

1 2)

moes04silverado on 12-25-2010

06-03-2018 07:32 PM
by Michael Coleman

14

103,812

02, 03, 2002, 2500, 2500hd, 81, 81l, antifreeze, changing, chevy, leak, leaking, leaks, oil, smell, tranny

HELP...8.1 Loosing Coolant!!!

(

1 2 3)

Ender06 on 03-14-2009

03-18-2018 12:10 PM
by TonyT

29

46,586

81l, allison, avalanche, city, code, exhaust, lake, pipe, place, salt, trans, transmission, truck, vin, whos

How can i tell if this has the Allison tranny?

(

1 2)

lifted99GMC on 10-20-2004

01-12-2017 01:45 PM
by 1FastBrick

17

57,642

2002, 81, 81l, avalanche, bootheredneck, chevy, code, gm, line, p1220, p1221, p1221a, signal, tps

TPS and Tach Signals

BooTheRedneck on 03-20-2006

10-27-2015 08:36 PM
by Velocity1

8

2,406

2006, 496, 59920, 81, 81l, flow, gm, headers, install, magnaflow, muffler, obtain, pics, stainlessworks, vararam

8.1L StainlessWorks Headers are ordered!!!

(

1 2 3 4 5 ... Last Page)

Whippled 496 on 01-26-2009

07-02-2015 10:07 PM
by Whipped383

106

29,973

496, 81, 81l, big, block, cam, efilive, headers, heads, jeep, raylar, tuning, upgrades, vortec, wiki, xr270hr

Vortec 8.1 Performace Help

(

1 2)

OMalley on 03-24-2006

03-23-2015 08:03 PM
by Modifyit15

14

22,268

81, 81l, 93, headers, long, octane, power, stainless, tube, tune, vortec, works

8.1 Tune vs Tune+Headers

Vortec8100 on 02-12-2014

01-31-2015 01:30 AM
by TIMINATOR

8

33,837

New 90MM 8.1L Intake Manifold

(

1 2 3 4)

Raylar Engineering on 01-26-2014

01-30-2015 11:42 PM
by Whipped383

39

24,992

81, 81l, finally, flow, heads, intake, manifold, modification, numbers, ported, porting, poted, stock, torque

Finally! Modified Stock 8.1L Intake Manifiold Numbers!

(

1 2)

Raylar Engineering on 05-28-2014

12-23-2014 08:25 PM
by xx_ED_xx

19

25,906

Trucks and SUV Classifieds

03, 2003, 2500, 2500hd, 81, 81l, chevy, ecsb, gmc, performance, sale, supercharged, supercharger, truck, whipple

2003 2500HD ECSB 8.1L Whipple Supercharged

(

1 2)

Whippled 496 on 02-04-2014

03-25-2014 05:33 PM
by Whippled 496

14

19,357

53, 81l, balance, bank, chuggle, code, cylinder, engine, failure, fuel, h3, hummer, injector, p1174, saturn, symptoms, trim

P1174 Fuel Trim Cylinder Balance Bank1

TexasGMC08 on 02-24-2014

02-27-2014 12:04 PM
by TexasGMC08

1

7,093

01suburban, 400, 81, 81l, boost, comparison, economy, engine, fuel, gas, ib, k2500, mileage, suburban, trans

01 Suburban K2500, 8.1L... MPG comparisons

(

1 2)

Ronich69 on 01-05-2014

02-22-2014 08:26 PM
by RezinTexas

15

6,484

8.1L Cam

02chevrod on 10-30-2013

10-31-2013 09:37 PM
by chevy79

1

1,176

2001, 2500hd, 81, 81l, big, block, boat, chevy, gain, gmc, hd, headers, hp, sierra, silverado, stainless, works

Big Block 8.1 Headers w/2" Primaries

(

1 2 3)

Stainless Works on 06-25-2012

10-24-2013 06:43 AM
by yooperLS6

23

23,697

lifter tick?

(

1 2)

Boosted_Silverado on 09-09-2013

09-16-2013 09:11 PM
by hsiriyob

17

3,467

new here. picked up a 04 sierra 8.1L

polaris650freak on 09-08-2013

09-12-2013 06:18 PM
by skaffy03

6

1,908

New Members

02, 07, 81, 81l, adjust, bigger, cam, compensate, fuel, general, increase, injectors, made, motors, pressure, regulator

8.1 fuel pressure and injector question

OMalley on 07-23-2013

08-05-2013 09:49 PM
by OMalley

8

15,518

50psi, 81, 81l, drops, engine, liter, litre, low, mercruiser, modifications, oil, operating, pressure, rebuit, wot

8.1l rebuilt engine low oil pressure

(

1 2)

whippled 8.1l build on 05-21-2013

07-07-2013 02:42 PM
by 02_2500avalanche

13

14,402

compound twin turbo questions

(

1 2 3 4)

whippled 8.1l build on 06-04-2013

06-07-2013 11:16 AM
by t_thall

32

8,651

2000, 2001, 81, 81l, cam, engine, gm, high, injector, injectors, lbs, mileage, put, rich, silverado, vortec

Explain injectors

Txblue on 05-29-2013

05-30-2013 11:56 AM
by Txblue

6

1,349

1and, 81, 81l, bank, defferance, fan, fuel, liter, paying, performance, powered, professions, raylar, top, trim, vbulletin

8.1L Timing - How low is low?

(

1 2)

406jeep on 04-20-2013

05-25-2013 09:42 PM
by 406jeep

17

11,488

42, 42lb, 81, 81l, buy, data, flow, fuel, injector, injectors, lb, marine, performancetrucks, size

42lb 8.1L Marine Injectors

406jeep on 05-01-2013

05-01-2013 02:29 PM
by GMCtrk

1

6,712

2004, 48, 81, 81l, bbc, big, dart, intake, length, liter, making, picture, port, pushrod, room, silverado, stroke, whipple

8.1 engine options??

(

1 2)

scottybeammeup on 04-24-2013

04-30-2013 03:18 PM
by whippled 8.1l build

14

9,797

2500, 2500hd, 4, 81, 81l, 95, chev, chevy, dually, exhaust, exhuast, gas, gm, inch, k3500, muffler, mufflers, oem

How would a 4 inch exhaust be on a 8.1?

24gt24gt on 01-01-2013

03-05-2013 07:20 PM
by tman_2006

6

8,696

2006, 81, 81l, diamond, fastest, forums, jeep, memberphpu, mods, oil, pistons, power, powered, raylar, vbulletin, vortec

Fastest 8.1 Thread...

(

1 2 3 4 5 ... Last Page)

xx_ED_xx on 09-20-2010

12-19-2012 11:47 PM
by xx_ED_xx

77

24,743

GM Drivetrain & Suspension

2002, 81, 81l, cab, duramax, gas, liter, regular, standard, swap

8.1l - duramax swap

whippled 8.1l build on 12-18-2012

12-19-2012 08:46 AM
by 03sierraslt

5

2,095

2300, 33, 454, 81l, 83l, 917066, ati, blower, crank, noise, pulley, tvs, vortec, w510ax, whipple

Thinking outloud, please help...

(

1 2 3 4 5 ... Last Page)

Whippled 496 on 03-12-2009

12-12-2012 09:56 PM
by Whipped383

70

14,709

GMT 800 & Older GM General Discussion

180, 81, 81l, additive, additives, benefit, consumption, engine, hemi, high, mileage, oil, thermostat, truckers, trucks

engine oil additives

(

1 2 3)

lawdog49 on 03-27-2011

12-11-2012 03:44 AM
by Koots

21

4,969

23l, 2500hd, 81, 81l, alternator, install, intercooler, kit, part, relocation, supercharger, tronics, whipple

8.1l whipple feeler

whippled 8.1l build on 10-20-2012

11-05-2012 10:37 AM
by whippled 8.1l build

8

3,974

1l, 2002, 81, 81l, charger, engine, kit, l18, pic, super, supercarger81, supercharged, supercharger, xl, yukon

8.1 supercharger?

(

1 2 3)

sand man on 11-18-2011

10-23-2012 08:19 PM
by Whipped383

29

9,901

2500hd, 60l, 81, 81l, diagram, ecm, egr, location, pigtail, valve, wire, wiring

8.1l with wiring and ecm

fletchermotorsports on 08-21-2012

09-27-2012 05:38 PM
by fletchermotorsports

3

1,378

03, 383, 81, 81engine, 81l, boost, built, chevy, compression, cylinder, heads, maximum, porting, silverado, tune, whipple

8.1l high boost

(

1 2 3)

whippled 8.1l build on 09-18-2012

09-22-2012 08:30 PM
by whippled 8.1l build

27

34,774

2012, 60, 81, 81l, chevy, forum, injectiors, injectors, marine, performance, pound, pounds, silverado, stock, tuning

8.1 L Injectors

a.vinson on 02-19-2012

09-16-2012 08:22 PM
by Whipped383

5

1,382

2001, 81, 81l, buy, chevy, engine, heads, kit, performance, raylar, sale, silverado, sts, truck, trucks, turbo

Raylar stuff

(

1 2 3)

TieRod on 03-03-2012

09-16-2012 02:39 PM
by xx_ED_xx

25

17,653

01, 02, 320, 81, 81l, bear, black, blackbear, chevy, code, florida, silverado, tune, tuner, tuners, western, westers

8.1 tuners

(

1 2)

02SilveradoLT on 03-20-2012

09-16-2012 11:10 AM
by Whipped383

10

36,452

60, 81l, c3, conversion, e85, filter, fuel, hp, hydroboost, injectors, level, lq9, nnbs, procharged, procharger, sierra, v8, weld

fuel injector help for H/C/I/E Procharged 6.0

(

1 2 3 4 5 ... Last Page)

AndysC3 on 06-13-2012

08-28-2012 11:57 PM
by AndysC3

102

10,454

FUEL SYSTEMS

2500, 464229, 60, 81, 81l, build, chevy, fast, fuel, injectors, pump, silverado, tierod, upgrade, whipple

another 8.1l whipple build still questions

(

1 2 3 4 5 ... Last Page)

whippled 8.1l build on 04-22-2012

08-27-2012 01:51 PM
by whippled 8.1l build

57

16,468

81l, custom, efi, live, operating, system, turbo, version

2 Bar EFILIVE OS upgrade

NegraRCSB2X4auto on 08-18-2012

08-23-2012 11:42 PM
by NegraRCSB2X4auto

3

890

06, 2006, 4x4, 81, 81l, allison, bad, control, denali, ecm, ignition, module, silverado, switch, transmission, yukon

HELP..! 2006 8.1L ALLISON TRANS 4x4

400ss on 08-08-2012

08-10-2012 03:06 PM
by Chevy_freak

3

1,632

42lb, 81l, 90, forum, gm, injector, injectors, intake, marine, parts, truck

8.1L marine 42lb injectors

AndysC3 on 07-26-2012

07-30-2012 07:36 PM
by AndysC3

6

1,061

81, 81l, bear, black, cam, custom, heads, liter, mercruiser, mileage, nelson, raylar, specs, tune, westers

Best mileage 8.1

(

1 2 3)

Txsasquatch on 06-10-2012

07-26-2012 10:10 PM
by 330oldsmobile

20

6,951

2500hd, 53, 81l, gas, gto, headers, improve, long, longtube, lt, mileage, mpg, tahoe, tube, tune

Long tubes and economy?

(

1 2)

custm2500 on 06-26-2012

07-08-2012 10:43 AM
by custm2500

13

39,014

81, 81l, bolt, bolts, copper, forums, gaskets, header, headers, kerr, kit, locking, review, stage, stayput

locking header bolts 8.1l

Kerr on 03-09-2012

07-02-2012 09:22 AM
by Kerr

5

1,940

2012, 81, 81l, cam, chevy, crank, forum, mercruiser, push, pushrods, rebuilt, relearn, rod, sensor, start, wont

8.1l whippled WONT START rebuilt motor

(

1 2 3 4)

whippled 8.1l build on 05-31-2012

06-21-2012 03:33 PM
by whippled 8.1l build

33

4,353

04, 1500, 2500, 496, 81, 81l, chevy, gmc, hd, header, ls1, silverado, turbo, turbocharged, turboed, whipple

8.1l whipple plus turbo

(

1 2 3)

whippled 8.1l build on 06-04-2012

06-12-2012 09:48 PM
by whippled 8.1l build

22

5,876

05, 496, 81, 81l, intake, l, manifold, pcv, performance, picture, problem, rocker, rockers, roller, upgrade

pcv system on 8.1L 496 advice

1 FMF on 05-31-2012

05-31-2012 11:43 PM
by AKlowriderZ71

1

5,918

81l, case, casing, crank, drill, filler, location, ls1tech, neck, oil, pcv, performance, pressure, sts, tap, trucksnet, turbo

8.1l turbo, crank case pressure? help?

Kerr on 08-30-2011

05-31-2012 11:11 PM
by 1 FMF

6

14,720

04, 2004, 2012, 53, 81, 81l, build, charger, forum, kenny, liter, silverado, super, supercharger, superchargers, whiple, whipple

8.1l whipple/ kennybell

whippled 8.1l build on 05-22-2012

05-22-2012 08:17 PM
by whippled 8.1l build

4

1,446

2007, 60, 81l, injectors, lbs, silverado, tahoe, truck, turbo, uscar

new turbo needs injector upgrade

(

1 2)

smdusaf on 05-07-2012

05-15-2012 09:59 PM
by whippled 8.1l build

11

2,061

2012, 81, 81l, cats, flow, forum, fuel, gm, high, injector, injectors, marine, performance, size, sizes

8.1L Marine Injectors: Where to buy?

AlwaysFollowed on 05-05-2012

05-11-2012 08:20 PM
by 01SUBCT

4

13,141

2004, 2500, 60l, 60to, 66, 66l, 81, 81l, chevrolet, conversion, dmax, duramax, hard, swap, swapping

6.0L to 6.6L DMAX Swap

Ron Glick on 04-23-2012

04-27-2012 05:10 AM
by xx_ED_xx

4

3,030

2003, 81, 81l, add, block, blocker, blocking, blockoff, egr, gm, headers, liter, location, plate, silverado

EGR block off? on a 8.1L

Kerr on 12-08-2010

04-23-2012 01:19 PM
by whippled 8.1l build

5

12,757

81, 81l, cam, dyno, engine, engines, heads, location, motors, parts, performance, pricing, raylar, truck, trucks

8.1L engine with Raylar heads

tjwong on 12-12-2005

04-16-2012 05:02 PM
by xx_ED_xx

9

7,543

GM Drivetrain & Suspension

04, 496, 6010, 81, 81l, blazer, dart, ecu, firing, gen, msd, order, siamese, silverado, stand, vii, zz502

craming a 8.1l in a 72 blazer

(

1 2 3 4 5)

truckrunner67 on 03-06-2012

04-07-2012 06:14 PM
by xx_ED_xx

41

7,606

02, 04, 2005, 2500hd, 81l, allison, boost, cam, camgt23, gauge, gmc, gt23, kit, mods, sale, shift, sierra, wiring

Suggestions for next mods after blower

Bama2door on 03-09-2012

03-22-2012 12:01 AM
by Bama2door

7

1,267

42, 42lb, 81l, compare, fuel, injector, injectors, intake, lm7, ls3, manifold, rail, rating, rings, truck

LS3 injectors

NextLevel on 03-16-2012

03-17-2012 10:59 AM
by Bama2door

1

3,173

2500hd, 81, 81l, block, cab, cam, chevy, heads, liter, raylar, sale, short, single, truck, trucks

8.1l Raylar heads and forged short block.

(

1 2)

TieRod on 03-03-2012

03-16-2012 02:33 PM
by xx_ED_xx

10

4,864

08, 14, 1500, 2004, 496, 81, 81l, cam, fit, forum, halfton, inch, performance, project, rotors, silverado, xxedxx

My 8.1 Silverado project

(

1 2 3 4 5 ... Last Page)

xx_ED_xx on 11-26-2009

03-14-2012 10:32 PM
by JoeyGC5

57

28,261

PROJECTS GALLERY

42, 53, 53l, 81l, angle, chevy, choosing, good, injectors, job, lbs, street, turbo, valve, vortec

is this turbo good for my goals?

(

1 2)

Cammed4ever on 03-13-2012

03-14-2012 03:39 PM
by stock48

10

2,106

2005, 496, 81, 81l, build, chevy, gm, hp3, intake, manifold, picture, pictures, raylar, suburban, whipple

01 8.1L build up suggestions.

(

1 2 3 4)

Kerr on 09-23-2010

03-12-2012 07:20 PM
by xx_ED_xx

30

14,891

81, 81l, avalanche, chevy, ebay, exhaust, fit, gm, gmc, guys, header, headers, older, sale, tog, togs, truck

TOG The Other Guys 8.1 Headers for sale

(

1 2 3)

xx_ED_xx on 07-19-2011

01-27-2012 05:24 PM
by xx_ED_xx

24

8,774

2004, 53, 81l, block, chevy, fuel, fuse, harness, make, pump, samurai, silverado, stand, wire, wiring

making a stand alone harness

(

1 2)

delreyss on 01-02-2012

01-09-2012 08:46 PM
by KIFER88

14

15,026

81l, auto, autocal, bear, black, blackbear, cal, locked, ls1, mpg, performance, results, reviews, sell, tune, tuner, tuning

AutoCal Tuning?

Ferocity02 on 01-04-2012

01-08-2012 08:03 AM
by cdub81

6

4,025

81, 81l, cuts, engine, fine, floods, forum, gmc, happened, idle, liter, load, runs, stalls, yukon

8.1L bucking then die

usaf_hess on 10-11-2011

12-18-2011 04:22 AM
by usaf_hess

9

2,387

81, 81l, boost, clogged, gm, injector, injectors, level, liter, litre, performance, specs, take

8.1l injector?

Nflddog1000 on 12-15-2011

12-15-2011 07:26 PM
by SweetS10V8

1

938

2004, 81, 81l, blown, bottom, chevy, diablo, exhaust, gibson, performance, records, sticking, stock, suburban, throttle, turbo

8.1L turbo suburban track times.

(

1 2)

Kerr on 09-19-2011

11-28-2011 02:42 PM
by hog

10

7,229

218224, 81, 81l, cam, cams, camshaft, chevrolet, chevy, crane, intake, manifold, performance, raler, specs, swap

8.1L cam selection

Kerr on 06-01-2008

11-23-2011 06:28 PM
by sand man

7

23,323

GM Drivetrain & Suspension

2500hd, 80, 81l, 99, dakota, fan, howling, od, rt, slowing, tahoe, ujoints, vibrates, vibration, weird

Weird noice and vibration HELP!!!

Dgrown on 11-15-2011

11-15-2011 07:00 PM
by Dgrown

3

1,168

2002, 2500, 81, 81l, american, hd, headers, heaers, long, lt, racing, tube, tube81, vortec, yukon

8.1 long tube headers

usaf_hess on 11-11-2011

11-12-2011 11:53 AM
by usaf_hess

3

3,045

81, 81l, advance, chevy, efilive, idle, injector, issues, liter, low, octane, rich, running, silverado, table, timing

Anyone else have rich idle issues with 42/44lb 8.1L marine injectors

(

1 2 3 4)

BlackGMC on 11-04-2011

11-10-2011 11:18 AM
by BlackGMC

39

4,798

2001, 2002, 2004, 2011, 81, 81l, 81llifterremoval, adjustment, change, forums, kind, lifter, lifters, replace, silverado, sound, suburban, ticking

8.1L Lifter replacement

nathan_ on 10-15-2011

11-09-2011 08:14 PM
by nathan_

5

23,803

02, 2002, 81, 81l, alison, allison, chevy, f150, ford, forum, gm, gmc, hoses, lines, trans, transmission

02 8.1L w/Allison Transmission Lines

moes04silverado on 10-18-2010

11-02-2011 11:18 PM
by xx_ED_xx

3

3,247

53, 81, 81l, bigger, direct, fit, height, injector, injectors, installing, join, modeling, performance, replace, swap

8.1l injectors in a 2000 5.3

(

1 2)

1quickTPI on 10-29-2011

11-01-2011 01:01 PM
by grey matter 04

12

6,254