best L67 head gasket for high boost

[twinv6gtp]

Which is one is the best. I hear a lot of talk about sealing problems with MLS gaskets. But also talk that factory gasket can't support too much boost ?

Which is the best ? Victor Reinz has two models...

Click to read more...

 

[GTPpower]

You ran on completely stock gaskets and head bolts, right? With like 30psi?

I'm a pretty big believer that stock head gaskets and ARP head studs will support just about anything as long as there is no detonation.

 

[1quick]

I ran victor's with head studs, I would either run stock or those, and do the center 4 head studs to 90-92ft lbs and the outer bolts to standard studs tq

 

[twinv6gtp]

Yes I did. But i will be running more power and hope to have a full season of racing without failure.

 

[twinv6gtp]

Victors have two types... which one mls or composite ?

 

[GTPpower]

I think one is for NA motors, and one is for FI. I've used them both, and they look identical.

 

[Turbocharged400sbc]

jb weld

 

[nos4blood70]

jb weld

Weld the heads to the block.

 

[twinv6gtp]

Bought 2 pairs of Victors HG
Thanks !

 

[Mattstrike]

Not sure how anybody could think that a stock gasket will hold up the same as an MLS gasket.

 

[GTPpower]

Because mls suck donkey balls.

 

[OffshoreDrilling]

Not sure how anybody could think that a stock gasket will hold up the same as an MLS gasket.

True in 99% of cases.



3800s are run on some sort of voodoo magic. You'll blow up a set of forged rods and pistons before the stock stuff gives up in another motor with twice the boost and knock. I can only assume head gaskets are the same.

 

[Mattstrike]

Because mls suck donkey balls.

Only if you don't set them up right...

 

[1quick]

I never had issues with the mls but for stock finish heads it's easier to run stock gaskets then mess with drilling the rivets out of the mls gaskets and coating each side of each layer and waiting for it to tack up and hoping the stock head finish was good enough for them to seal right when you can just throw stock gaskets on and torque them down to james spec and they hold fine

 

[twinv6gtp]

Ran 30 psi on original gasket one engine with 160k miles. Gasket was fine when we took the engine apart for maintenance inspection.

We run stock composite gasket on 1 liter engines running 54 psi of boost making 600hp with only 2 cylinders. We run 75ftlbs on the head studs vs 45 stock.

I had no issues but others went oring nothing but problems... and mls cometic was 50/50

 

[jdredd]

stock gaskets here with ARP studs.

Only thing I might have wished to do, if I had known the short block I had
Tischler clean up for me was gonna end up the turdbo car, was hog it out
for 1/2" ARP studs to get more clamping force.