Blown headgaskets?

[JQmile]

Who's blown their stock ones? Boost? Power levels? Re-torques?
Just curious....adding some more nitrous to it and wondering how it'll hold....

[pulltilbroke]

I've blown 3 so far, the original, one stock thickness, and one .020 overthick gasket. They usually last about a year at 50+ psi boost levels with new stock bolts torked to 130

[crewcabxlt]

I had mine fail on my non i/c motor and leak externally. the non i/c motors had a crappy head gasket from the factory,they improved it when they switched to intercooled. Ive only changed 4 but from what Ive seen the 17-18 year old non i/c could go anytime. might as well push it becuase your due !!

[ford69557ci]

I popped the stocker at 50lbs and it filled the cooling system full of oil. The .020 torqed to 130 let go at 60 with some nitrous. A .020 with orings and a-1 studs lasted till I sold the truck and it now has twins with 80lb of boost and its still goin strong.

[gear jammer 91"]

I've blown three since October. My problems are due to pushing 40 pounds of boost on a cold engine though. I didn't realize until the third one blew, that what I was doing was causing the failures The first gasket that blew was whatever was in the truck when I bought it, I had retorqued the head bolts to 125# before it blew. The second one was a stock gasket, and I replaced all the head bolts when I put it in and torqued to 125#. After that one blew I had the head surfaced and installed a .020 gasket, torqued to 125#, it blew. I'm now running a stock gasket again, and had the head surfaced again, and the bolts are at 125#, but know I don't get on the throttle until the engine is up to temp.

[SNOOT]

Original head and gasket with 220,000miles 48PSI @ 320HP

[dpuckett]

I blew the HG in a nonIC 91 with 250K showing (who knows actual). Drove it 10k before figuring out what it was- oil and water were staying seperated.

Replaced a 93 HG due to the #1 coolant "nuisance leak" of a gallon of coolant a week.

Daniel

[dvst8r]

Blew mine after a couple months of 50psi, on a stock motor with close to 400,000Km's Getting O-rings and studs now. Blew to the outside under the exhaust manifold.

[pulltilbroke]

Yeah, the last 2 I've blown have blown on the pass side and then dribbe down the side of the block

The first one I blew was between the cylinder and a water jacket, that one was messy

[Ramrod90]

I just blew my stock one by putting 6x18's in and "testing" them on a cold gasket. Dunno how much boost I was throwin but I have the stock turbo so it got purty hot. Now I got ARP studs and the .020 h/g so I should be safe.

[RSWORDS]

Popped mine with the silver 62 @ 55psi on a stocker. Ran fine for weeks, re torqued the head an it lasted a week. Oh well, popped it between cyl #4 and #5

[cummins king]

I ran 63psi with retorque to 125ftpds, for the longest time untill I put the big pump on and it lasted all of 10 minut warm up and a 30 second test run

[U.S MMA]

mine went a couple weeks ago, pretty cool since it was replaced about 60k ago, has only boosted to 32psi a couple times and was a bone stock power for about 50k. It was a felpro, now it has the thick marine one. Im hoping i get a couple hundred out of it, my truck is pretty mild.

[SChandler]

My 90 lost the headgasket at around 450,000 miles. The max boost it had seen at the time was probably 20-ish (wasn't turned up yet). No retorques that I know of.

[RSWORDS]

Here are some pics of mine. Right between 4 and 5. Looks like a few others were ready to go too.





Why is this peeling up like that?


And also... Were did that little piece of the gasket go?