Blew first LS headgasket today...
 

Well, i blew my first LS head gasket today, and only at a miserable 10 psi. Pulled the plugs after i had the car towed home, and #4 cylinder must of toasted...plug was nice and shiny new looking, and plenty of steam came out of the plug hole ::) I ordered up a fel-pro 9698pt MLS headgasket for tomorrow morning, and was just wondering when i torque the head bolts back down, should i torque them a hair more than what the service manual says? I know that the b18a1's had a service recall for re-torquing the heads, was also wondering if anyone new where i could find the info on this bulletin too. Just hoping that if i torque it a little more, this won't happen again any time soon :P

Re: Blew first LS headgasket today...
 

just get some ARP head bolts and problem solved ::)

make sure you unbolt the head uniformly

Re: Blew first LS headgasket today...
 

I constantly re-use honda headbolts without problems, ---- probably re-used my z6 ones on 4 different motors, but I always do a 5lb-ft overtorque just for a lil extra peace of mind.

Re: Blew first LS headgasket today...
 

Well, it doesn't really matter any more...pulled the head off to get ready for tomorrow, and the headgasket was fine. Unfortunately the cylinder wall wasn't...I have a huge split in the #4 sleeve that cracked both the inner and outer sleeves and is about 3 inches long. :'(

Re: Blew first LS headgasket today...
 

OUCH, that sucks. oh well, rebuild bigger and better!

Re: Blew first LS headgasket today...
 

I want to, just trying to find another block for a decent price. Almost debating going back to D-series...for all the time and money I dumped into this LS turbo setup, I could've built my d16z6 that i sold to handle way more than what I nuked this LS at.

Re: Blew first LS headgasket today...
 

LS blocks are cheap, im really supprised you cracked one at 10psi... dont give up just yet.

Re: Blew first LS headgasket today...
 

Seriously..


Was it tuned?

I'm assuming it wasnt.. or it wasnt tuned right.. If it was. what where your timing maps like?

Re: Blew first LS headgasket today...
 

haha, woulda have to had been like a basemap without bothering to use any of the ignition boost retard adjustment functions

Re: Blew first LS headgasket today...
 

Hey I have a spare block here, if you want we can work out a deal