LB7 Headgasket parts listing - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #1 of 17 (permalink) Old 02-28-2012, 01:03 PM Thread Starter
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LB7 Headgasket parts listing

1 Left headgasket
Grade A: 97309562
Grade B: 97389257
Grade C: 97389258

1 Right Headgasket
Grade A: 97309559
Grade B: 97309560
Grade C: 97309561

1 Set of ARP Headstuds: # 230-4201

Injector installation kit:
(2x)Internal Return line to head banjo seal: #97600925
(8x) Injector to return line banjo seal: #97228933
(8x) Injector copper washer: #97216082
(8x) Injector body Oring: #94011699
(8x) Injector line Oring: #94011701

1 tube of loctite Super Grey gasket maker

(16x) Injector cup oring: #94051259

(2x) External return line to head banjo seal (passenger front/ driver rear): #97600925

(1x) Fuel return line to fuel distribution block: #97250485

(2x) Coolant Ybridge to head gasket: #97223686

(1x) Heater pipe to Thermostat pipe Oring: #94011605

(1x) Upper radiator pipe Oring: #94011604

(1x) Lower Bypass pipe oring: #94011603

(1x) Upper bypass pipe: #94011602

(2x) Exhaust Manifold to Up pipe gasket: #97188685



Optional Stuff: (8x) Injector return line banjo bolt: #97228929 (Rec having a few extra, they strip easy)

(8x) Injector cup: #97188463

(3-4x) banjo seal (nice to have, used in various locations): #97600925

(1x) Turbo downpipe gasket: #97192619

(2x) Turbo pedestal to up pipe gasket: #97192618

(2x) Yrbidge gasket (highly recommend): #97251963

(2x) Exhaust manifold gasket (if manifold is removed): #98002804

(2x) lower valve Cover gasket (reusable): #97188896

(12x) hex head bolts to replace oe allen head lower valve cover bolts: ace hardware

(11x) hardened allen head bolts for upper valve cover (oe strip easy): ace hardware


Think that is everything.
John
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Last edited by jmaz268; 02-28-2012 at 01:06 PM.
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post #2 of 17 (permalink) Old 02-28-2012, 01:05 PM Thread Starter
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Listed a few extra Orings, Its too easy/cheap to change them while its apart. Not so easy if you put it back together and one leaks.

Ybridge gaskets are supposedly reusable, but I recommend changing them as well. I changed mine and even put a gasket maker on em to make sure.

Pretty sure i covered everything.

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Sponsored by Creatures of the Night Performance and SDP
--2005 CCLB Dually
The tow pig
Tuned and Edge Insight CTS
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post #3 of 17 (permalink) Old 02-28-2012, 01:16 PM
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You should make this a sticky in DIY, so we can all use gm parts direct! Thanks jmaz!

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post #4 of 17 (permalink) Old 02-28-2012, 01:22 PM Thread Starter
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Quote:
Originally Posted by jacobdewey View Post
You should make this a sticky in DIY, so we can all use gm parts direct! Thanks jmaz!
Done

Goes by John
--2001 ECSB
SDP Big Single, Wehrli Dual Fuelers, 50% sticks, Front Coilover Conversion, Anorexic .....much much more

Sponsored by Creatures of the Night Performance and SDP
--2005 CCLB Dually
The tow pig
Tuned and Edge Insight CTS
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post #5 of 17 (permalink) Old 03-28-2012, 06:58 AM
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We offer kits with everything needed to do the job. Makes ordering a breeze. We designed them with the help of our in house mechanics to ensure that the kits have everything needed to do the gob right!
LB7 Head Gasket Kit
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Last edited by nickMA; 01-13-2017 at 07:57 AM. Reason: Updated Product Link
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post #6 of 17 (permalink) Old 01-06-2013, 07:56 AM
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what is the difference between Grade A B or C ??

2004 chevy 3500
285/75-16 COOPER DISCOVERER ATP. Diamond Eye K5118A 5" Turbo Back. PPE hi idle. Nicktane with 1 micron filter
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post #7 of 17 (permalink) Old 01-07-2013, 05:06 AM
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A,B,& C stand for different thicknesses. GM mixed and matched what went into the motors, so some have the same on both sides, some different. When replacing head gaskets in house we go to the Grade C. It's the simple solution, you are able to resurface the heads and still not have clearance issues, and it doesn't lower the compression enough to notice a change in power.
The grade C is also what we use in all of our head gasket kits that we ship worldwide daily.
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post #8 of 17 (permalink) Old 01-07-2013, 05:26 AM
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I appreciate that information and as soon as I find out what my problem is if it is my head gasket more than likely will be getting them from you if you have a ARP with them kits

2004 chevy 3500
285/75-16 COOPER DISCOVERER ATP. Diamond Eye K5118A 5" Turbo Back. PPE hi idle. Nicktane with 1 micron filter
4WD CREW CAB
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post #9 of 17 (permalink) Old 04-07-2013, 10:53 AM
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Im tryin to figure out what head gasket i have it just has a L though no A,B, or C?

2001 2500HD 4x4 ext. cab long bed.
PPE boost valve, S&B intake, ported horn and y-bridge
RBP 4" to 5"tip, Driver side ex. manifold upgrade
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Tuned by rob at www.atptrucks.com via EFILive
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Rebuilt stock IHI at AZ turbo and tractor/HSP s475
Fresh GM injectors baby. Remaned my Cyl. heads
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post #10 of 17 (permalink) Old 04-07-2013, 11:07 AM
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They aren't marked with A B or C they have dots on the end of the gasket itself. Ill grab a pic



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