vettenuts

iTrader: (4)

I have been reading a lot about Cometics leaking. Are these reliable gaskets on the street?

JoeyGC5

iTrader: (24)

about 6-8k miles on mine so far. Been on two 1500 mile roadtrips

Nasty N8

iTrader: (33)

If deck serfaces are straight and smooth they should not leak.

Nate

LS1 BU

iTrader: (13)

I've reused mine Three times in three years never had a problem.

Beast96Z

iTrader: (21)

If there gunna leak, you should notice it right away. Mine leaked, but I believe the deck surface was questionable. My new motor will be getting them.

vettenuts

iTrader: (4)

Bringing this back from the dead for more data, plus someone else is asking and was told by a shop that Cometics aren't made for a DD.

99blancoSS

iTrader: (115)

Surface prep!! GM has OEM MLS gaskets.

Jon@Texas-Speed

iTrader: (18)

Cometics are just fine for a daily driven setup. We sell and install them on DD cars all the time. With the right surface prep (as required for any gasket) is crucial to ensure a good seal. I recommend putting a thin coat of copper gasket spray prior to install to help them seal. I personally have reused my head gaskets on my 408 twice now and they have held up to a 300 shot, no problem!

We carry several bore sizes and gasket thicknesses on the shelf. Let me know if you have any questions, concerns, or need pricing!

Jon
Texas Speed & Perf.

Big Bird WS6

iTrader: (9)

jon on cometic web site the gasket for a ls3. is .052 think. will this be fine on a boosted motor? in the 1000 rwhp range. (18psi, and nitrous to make up difference)

slt200mph

iTrader: (42)

I have over 30,000 miles on a set in my DD no problems at all...

99blancoSS

iTrader: (115)

Yep, ^^^^

the point I was making is that a Cometic is a MLS . Multi Layer Steel and Gm uses MLS.

HEMIETR

iTrader: (2)

No problems here as well. Deck surface is very important.

Viper

iTrader: (6)

No problems here, 30K DD.

Fratsit

iTrader: (1)

No problems here. I have around 3000 miles on mine. I think you'll be fine.

HavATampa

iTrader: (49)

No problems here. Over 8k miles and have been reused twice. I also sprayed them with a little copper sealant even though Cometic doesn't recommend it.