Bent6

Looking for opinions on the best head gasket for a boosted application. Iron GMPP LSx block with aluminum heads. Used a receiver groove SMC gasket first time around and had water get in 3 holes just sitting - no boost. Thinking of switching to a MLS type gasket like Cometic or the MLX gaskets. Looking for real world opinions. Thx

jb02ss

Summit sells a good kit that i purchased when i got my head redone and hasnt gave me any problem so far. Have about 3000miles on the heads

Blown06

iTrader: (32)

A lot of people like the ls9's.

Some use felpro mls gaskets.

I've only ever used cometics.

They are probably all just as good. I've seen lots of times head gaskets get a bad wrap from a jacked tune.

CaliboyTA

iTrader: (2)

i used felpro mls and it has over 50k miles and i have no problems

SPRAYED 01

iTrader: (22)

Get the gm ls9. 5 boosted years no issues. Come tics I had leaked coolant for me

conan

iTrader: (5)

Ran Cometics on my 347ci on 11#s ARP studs and never had a problem. Went with LS9's for my 383ci with the same ARP studs and 9#'s no problems either.

stngh8r

Will the ls9s work on a 98 ls1 engine?

SPRAYED 01

iTrader: (22)

On a 98 ls1, yes.