STFU racing

iTrader: (13)

Running a 91mm turbo 408. Water seems to be seeping out of the head gasket(one drop about every 30 seconds) when at idle and also after the car has been turned off. I double checked the torque on the bolts and all were good.

So for peace of mind I am going to change my head gaskets. What brand is recommended?

Texas_WS6

iTrader: (9)

I have been having good luck with the Cometic Gaskets, but I have yet to go over 12psi. I understand the problem is not the head gasket but the heads and the 4 bolt per cylinder. The LS1 heads are supposed to handle more boost then the LS3 heads before they push water. I hear 17psi is about all you can expect out of the LS3 heads. Some people have tried to Oring the block, I am not sure how much more boost if any more boost they were able to handle before issues crop back up.

What boost pressure are you running?

Shawn @ VA Speed

iTrader: (3)

what heads and what fasteners?

sixpack_2_go

iTrader: (1)

i was wondering the same thing

STFU racing

iTrader: (13)

arp bolts....When it was supercharged it was running 15 psi and since switched over to turbo and haven't pulled any boost yet...just idling and about a week ago we noticed a small puddle under the car and checked to see where it was coming from and the head gasket is the only option it can be. It kinda came out of nowhere.

Texas_WS6

iTrader: (9)

Mine did this the first time I ran it. I checked and checked and found the coolant line were the 1/4" (or so ) hose goes into the cross over tubing was the cause. If you have not put it under boost yet, it might be something symple like that.

ls1290

iTrader: (20)

If you are seeping water at idle, head gasket is totally gone. Most likely the rings are bye-bye.

sixpack_2_go

iTrader: (1)

how long did you run 15psi on the sc before you noticed the coolant?

Shawn @ VA Speed

iTrader: (3)

so what heads are on this thing?

Texas_WS6

iTrader: (9)

Shawn, whats the max on the L96 heads with cometic gaskets and arp capscrews?

MIGHTYMOUSE

iTrader: (59)

who put the heads on?

seen a head gasket put on these engines upside down or backwards do the same stuff. *not me!*

or maybe you got a cracked head *me been there*