cometic or felpro ?? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

bigboto_boy · 10-28-2009, 02:24 AM

i need a new gasket and i have hard time choosing im kinda on a budget but want my car to last pretty long without blowing a hg ...

so a friend of mine that helps me with my motor said to get a cometic or better but ive read and searched and people were saying that they sucked so im confuse should i go with felpro which is cheaper or go with cometic ??

i have a stock ka24de ...

R33E8 · 10-28-2009, 06:55 AM

Get a fel-pro.. People say Cometic sucks becasue they don't know wtf they are doing/talking about.. To use a Cometic or any other MLS style headgasket you have to have the head and block surfaced to get a proper seal.. I'm sure plenty of guys just throw it on thinking it will work, end up with leaks, then claim it sucks..

Anyways, I'm using a fel-pro on my 500hp ka-t.. Plenty others too.. I prefer fel-pro because it works and if something does go wrong, the headgasket will blow instead of your pistons or what not.. With a cometic, it's so strong that something else will probably give first..

ericb382 · 10-28-2009, 09:51 AM

If you're planning on keeping it NA, use a felpro. If you're going to turbo it, I say get a cosworth. It's a little more than cometic, but you get the peace of mind of having a good HG. Like mentioned above check to make sure the deck is true. Even with a felpro you need to have true mating surfaces, you just have higher tolerances than with a metal HG.

*let5l1de* · 10-28-2009, 01:26 PM

As stated above, MLS style HG's require you to have the head surfaced and block/front cover decked for squareness.

Cometic MLS HeadGasket's work fine. As with any MLS HG, when an improper installation is performed, they typically leak oil at the front cover mating area.

I'd recommend using head studs such as ARP, especially if you plan to run a performance Fel-Pro (Good HG IMO) HG in a turbo engine build.

~mario

10-28-2009, 02:24 AM	#1
bigboto_boy Leaky Injector Join Date: Jan 2009 Location: las vegas Age: 46 Posts: 102 Trader Rating: (0)	cometic or felpro ?? i need a new gasket and i have hard time choosing im kinda on a budget but want my car to last pretty long without blowing a hg ... so a friend of mine that helps me with my motor said to get a cometic or better but ive read and searched and people were saying that they sucked so im confuse should i go with felpro which is cheaper or go with cometic ?? i have a stock ka24de ...

10-28-2009, 01:26 PM	#4
let5l1de premium bullsh!t sifter Join Date: Dec 2007 Location: 626DRIFT, ca Posts: 1,053 Trader Rating: (23) Rides Gallery: let5l1de	As stated above, MLS style HG's require you to have the head surfaced and block/front cover decked for squareness. Cometic MLS HeadGasket's work fine. As with any MLS HG, when an improper installation is performed, they typically leak oil at the front cover mating area. I'd recommend using head studs such as ARP, especially if you plan to run a performance Fel-Pro (Good HG IMO) HG in a turbo engine build. ~mario __________________ Don't Know How To Install? IM/PM Read My Sales Review 626 Friday Nights San Gabriel

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10-28-2009, 06:55 AM	#2
R33E8 Leaky Injector Join Date: Jul 2006 Location: NJ Age: 19 Posts: 125 Trader Rating: (1)	Get a fel-pro.. People say Cometic sucks becasue they don't know wtf they are doing/talking about.. To use a Cometic or any other MLS style headgasket you have to have the head and block surfaced to get a proper seal.. I'm sure plenty of guys just throw it on thinking it will work, end up with leaks, then claim it sucks.. Anyways, I'm using a fel-pro on my 500hp ka-t.. Plenty others too.. I prefer fel-pro because it works and if something does go wrong, the headgasket will blow instead of your pistons or what not.. With a cometic, it's so strong that something else will probably give first..

10-28-2009, 09:51 AM	#3
ericb382 Zilvia Member Join Date: Oct 2005 Location: Flagstaff, Az Posts: 212 Trader Rating: (4)	If you're planning on keeping it NA, use a felpro. If you're going to turbo it, I say get a cosworth. It's a little more than cometic, but you get the peace of mind of having a good HG. Like mentioned above check to make sure the deck is true. Even with a felpro you need to have true mating surfaces, you just have higher tolerances than with a metal HG.

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