dreamls1

iTrader: (25)

Our head gasket blew today at the track. First run, WTF! What is a good aftermarket replacement? Stock bottom end , stock heads, ls1 pushing 15psi with a turbo. Should we get arp studs too? Help!

AFASTYZFR1

iTrader: (55)

Yes, get studs and stock GM 3 layer mls gaskets work great

COPO9560

Keep us posted of how long your stock bottom end lasts at 15 psi. You might consider also adding ARP fasteners to your rods too.

elias_799

iTrader: (8)

arp head studs will help you out allot

dreamls1

iTrader: (25)

Any other options?? I will let you know how long it goes. It went 12psi for a year

lmt0705

iTrader: (7)

cometics are a good upgrade from stock MLS

Reject

iTrader: (24)

i ran 16 pounds on stock bottom end 317 heads with mls gasket and arp studs. didnt hvae any issues

elias_799

iTrader: (8)

i have heard that the cometics require a much smother finish then the gm mls gaskets, do not know if that is true, i am sure somebody will chime in

bossz28-1

from my experience you just about have to polish the block and head to get them to seal and we have been spraing copper on them to help

dreamls1

iTrader: (25)

well i was thinking about going cometics and arps but maybe i will just run MLS if you guys are have trouble with them sealing. i just dont want to take the heads off to many times

anyone have the part number for a GM MLS?

dreamls1

iTrader: (25)

I was told to go with the FELpro perma seal gaskets. Anyone use these.

LS1x2

iTrader: (11)

OEM hardware is fine. Look into what made it detonate. I'm guessing it didn't detonate for long if the pistons are in 1 piece with that setup. I run 17psi on my stock ls6.

dreamls1

iTrader: (25)

first the car was tuned in 2nd gear due to the trans being off a bit, the afr was 12.1 when it should be 10.5:1 on a turbo car. and the timing was wrong. I just hope it was only the gasket and not the pistion! I know at the track it just took a nose dive and didnt stop running. i will take it apart this weekend.

raven154

iTrader: (14)

I have the felpro and run at 10lbs. I also have arp 2000 rod bolts, head and main studs. I know its a little over kill for 10lbs coming out of a maggie but I have never broke anything in the motor! lol

dudeman

iTrader: (43)

the ls3 head gaskets are a 5 layer mls. seems to seal pretty well.

dreamls1

iTrader: (25)

will the ls3 gasket fit the ls1? i am guessing it will, just wanted to make sure.

dudeman

iTrader: (43)

i am not sure if it will work on the ls1. i am using a 6.0.