Difference between 18mm and 20mm headgasket??? - Ford Powerstroke Diesel Forum
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post #1 of 12 Old 11-16-2010, 06:05 PM Thread Starter
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Difference between 18mm and 20mm headgasket???

Guys.. looking into buying the "6.0 solution kit" but can someone help me decide the difference between the 18mm and the 20mm head gasket? i don't know anything about the size things... help is appreciated! can someone explain the pro/cons to each? if able..

Current mods are:
4inch downpipe-kitty killed-5 inch back
S&B CAI
getting SCT tuner with egr delete.. holding off till get the 6.0 solution
dieselsite coolant filter
amsoil oil bypass filter


Ambitions are eventually bigger injectors and powermax/aurora 4000?
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post #2 of 12 Old 11-16-2010, 06:18 PM
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2003-2005 trucks use 18mm dowels

2006 Job1 (trucks built on or before 01/11/2006) use 18mm dowels

2006 Job2 ( trucks built after January 12th) use 20mm dowels

2007 trucks use 20mm dowels

Brandon

2007 F-250 6 point oh
146,000 miles
2.5 inch BDS leveling kit
35" Toyo Open Country A/T
OEM rotors w/ Hawk LTS pads
5 inch custom sidepipe
Edge Insight CTS
SCT X3 w/ Innovative Tunes
ARP headstuds
Bilstein 5100s
Banjo Bolts
NCHornet's CCV Mod
Dieselsite Boots
EGR Delete
FICM fixed by Ed/tuned by PHP
S&B Intake
Dfuser Coolant Filter Kit


2003 F-250 7.3
84,000 miles
SOLD
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post #3 of 12 Old 11-16-2010, 06:25 PM
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Not sure if I would follow that honestly had one that was a Job 2 and it turned out to be 18mm. We have noticed that ones that have a solid Turbo Feed turbo tend to have 20mm dowels, The turbo feeds that have the mesh have all been 18mm.

Matt at Gearhead,Doug at GoGo,Dave at Diesel Innovations,Ryan at Full Force Diesel,Eric at Innovative. Adam at First Coast

Built 2003 with 04.5-07 parts,Hey its a hybrid . Totaled

New Era Rescue 08 F250 CC/SB No limit stuff, H&S stuff, Fl pro stuff.
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post #4 of 12 Old 11-16-2010, 06:30 PM
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forgot to say..that was off of fcdp website..causeeee i have no idea lol

Brandon

2007 F-250 6 point oh
146,000 miles
2.5 inch BDS leveling kit
35" Toyo Open Country A/T
OEM rotors w/ Hawk LTS pads
5 inch custom sidepipe
Edge Insight CTS
SCT X3 w/ Innovative Tunes
ARP headstuds
Bilstein 5100s
Banjo Bolts
NCHornet's CCV Mod
Dieselsite Boots
EGR Delete
FICM fixed by Ed/tuned by PHP
S&B Intake
Dfuser Coolant Filter Kit


2003 F-250 7.3
84,000 miles
SOLD
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post #5 of 12 Old 11-17-2010, 01:45 AM
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Rescue, was that the case with my truck??
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post #6 of 12 Old 11-17-2010, 07:25 PM
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When I orded my MKM Customs complete kit, they had me look at the engine build date not the truck build....my June 06 build has 20mm.

2007 F250 CC Lariat
Black Onyx Head Gaskets (1st time)
Studded and trans built by BTS
Sinister EGR Delete & Coolant filter
Powermax Turbo
Edge insight CS W/Pyro & Fuel Pressure
MBRP 4" Straight pipe
423RWHP 753RWTQ

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post #7 of 12 Old 01-02-2011, 06:28 AM
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Where can I find the engine build date?

HIVOLTS

blew the last motor up...rebuilt, bored 30 over and Colt Stage II Cam, Warren Inj, Custom Fuel System, Airdog, Powermax with wheel
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post #8 of 12 Old 01-02-2011, 06:46 AM
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Quote:
Originally Posted by Hivolts View Post
Where can I find the engine build date?
I forget exactly, but it's on the firewall somewhere on a white sticker. Maybe drivers side...

What is the build date of your truck?

2007 F250 CC Lariat
Black Onyx Head Gaskets (1st time)
Studded and trans built by BTS
Sinister EGR Delete & Coolant filter
Powermax Turbo
Edge insight CS W/Pyro & Fuel Pressure
MBRP 4" Straight pipe
423RWHP 753RWTQ

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post #9 of 12 Old 01-02-2011, 07:08 AM
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it should be between the driver door and passenger door near the bottom of the door on that pillar thing (where the 2 doors meet) it should say the month and year it was built. Mine was built 06/06 i think but its an 07, so yours could be the same case, or not.

Brandon

2007 F-250 6 point oh
146,000 miles
2.5 inch BDS leveling kit
35" Toyo Open Country A/T
OEM rotors w/ Hawk LTS pads
5 inch custom sidepipe
Edge Insight CTS
SCT X3 w/ Innovative Tunes
ARP headstuds
Bilstein 5100s
Banjo Bolts
NCHornet's CCV Mod
Dieselsite Boots
EGR Delete
FICM fixed by Ed/tuned by PHP
S&B Intake
Dfuser Coolant Filter Kit


2003 F-250 7.3
84,000 miles
SOLD
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post #10 of 12 Old 01-02-2011, 08:06 AM
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the injector hold down bolts won't lie to you. if they are T40 you have 18mm dowels, T45 has 20mm

-Matt

Ford Senior Master Tech

2015 F-250 XLT 6.7L

2006 F-250 6.0L SOLD
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