6.7 Headgasket - Competition Diesel.Com

TwinTurboTim · 02-28-2021, 05:53 PM

Any advantage to running a cometic head gasket or just stick with a stocker? The head is O ringed.

Poulina · 03-01-2021, 08:49 AM

both work well, many would recommend fire ringing

TwinTurboTim · 03-01-2021, 08:58 AM

i have heard that Fire rings are not reliable on the long haul.

Marq92 · 03-01-2021, 01:02 PM

Round groove gives the best shot of longevity from what I've heard. If you can get the block done too even better but not needed. Getting it crushed fully from retorques is everything. If you drive pressures are in check though (kept at same or less than boost at WOT) then you'd be fine with good studs until you need to worry about the block holding up.

Poulina · 03-01-2021, 03:03 PM

Quote:

Originally Posted by TwinTurboTim

i have heard that Fire rings are not reliable on the long haul.

Okay you know best

02-28-2021, 05:53 PM	#1
TwinTurboTim Name: TwinTurboTim Title: Green Behind the Ears Status: Not Here Join Date: Nov 2019 Member`s Gallery Posts: 48	6.7 Headgasket Any advantage to running a cometic head gasket or just stick with a stocker? The head is O ringed. __________________ 2016 2500 Cummins, Allison swapped, Billet S480 over EFR9180. 188/220 Cam, Apex rods, Gorilla Girdle.

03-01-2021, 08:49 AM	#2
Poulina Name: Poulina Title: Too Much Time Status: Not Here Join Date: Dec 2015 Location: Norcal Member`s Gallery Posts: 795	both work well, many would recommend fire ringing __________________ 2008 QCLB 6.8 48re Suncoast PCS, DDP supermentals, forcedinductions 467/87, Hamilton 188/220, Carrillos, studded mains w/stock girdle

03-01-2021, 08:58 AM	#3
TwinTurboTim Name: TwinTurboTim Title: Green Behind the Ears Status: Not Here Join Date: Nov 2019 Member`s Gallery Posts: 48	i have heard that Fire rings are not reliable on the long haul. __________________ 2016 2500 Cummins, Allison swapped, Billet S480 over EFR9180. 188/220 Cam, Apex rods, Gorilla Girdle.

03-01-2021, 01:02 PM	#4
Marq92 Name: Marq92 Title: Too Much Time Status: Here Join Date: May 2012 Member`s Gallery Posts: 953	Round groove gives the best shot of longevity from what I've heard. If you can get the block done too even better but not needed. Getting it crushed fully from retorques is everything. If you drive pressures are in check though (kept at same or less than boost at WOT) then you'd be fine with good studs until you need to worry about the block holding up. __________________ 2001.0 QCLB 3500 4x4 3.55 Toyo M-55 255/85R16 Brown's/Goerend 48RE sonnax shafts/maxed count Alto clutches Carli/Deaver 3.0 EMF BJ's PSC 6 bolt box Synergy steering TheRetroShop HID projector retrofit VLED's DC Power 180A alternator W-T ground mod ISSPRO EV2's