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Hmm... I have almost got all the parts I need for my build. One thing that ive been searching for ages for is a head gasket. What is everyone's opinion on high performance gaskets vs standard OEM ones? Anyone running big power with standard ones?

I want to save some $$$ but if its crucial to buy a Cometic or something ill just do that instead.

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Most of the time head gaskets let go because of detonation.. so by having that as the weakest link then it could potentially save the piston/rings which would be next in line if something went wrong.

Kind of like running street tyres vs slicks at the track. The street tyres are the fusible link, they will only take so much force before they just start baking. If you run slicks and then all of a sudden your shafts/diff/clutch need to be able to take a whole lot more force otherwise they go – if that makes sense.

With that said, I bought a Cometic 3 layer

Edited by R34GTFOUR

I am hoping for around 450 - 500rwhp. I sent an email to spool imports regarding the shipping price for a cometic gasket. Prices on Ebay seem a little expensive and plus I dont know if they are genuine or not.

Edited by Gameboy

I am hoping for around 450 - 500rwhp. I sent an email to spool imports regarding the shipping price for a cometic gasket. Prices on Ebay seem a little expensive and plus I dont know if they are genuine or not.

I bought a cometic mls head gasket from Fabre Australia in Lakemba. I paid $300 for it but they were the only supplier in Australia to have a 86mm cylinder bore head gasket with 51thou thickness.

I bought a cometic mls head gasket from Fabre Australia in Lakemba. I paid $300 for it but they were the only supplier in Australia to have a 86mm cylinder bore head gasket with 51thou thickness.

I just bought the same one from Spool Imports for $250 including shipping :)

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use the stocker. its fine for power even higher than that.

I used a rb26 oem one the first time, now im using a cometic metal multi layer. I have to say I liked the stocker better the difference in quench was noticable. it really depends on how much boost you plan to run and power figure.. for your goal.. it wont matter unless, as others have said, you want to save some $$$ if you need to pull the head off

Can you please explain what you mean by the "difference in the quench was noticeable"?

Providing you're using the same thickness gaskets, quench measurements should not be changed. You must be good if you can feel a quench difference!

use the stocker. its fine for power even higher than that.

I used a rb26 oem one the first time, now im using a cometic metal multi layer. I have to say I liked the stocker better the difference in quench was noticable. it really depends on how much boost you plan to run and power figure.. for your goal.. it wont matter unless, as others have said, you want to save some $$$ if you need to pull the head off

I am hoping for around 450 - 500rwhp. I sent an email to spool imports regarding the shipping price for a cometic gasket. Prices on Ebay seem a little expensive and plus I dont know if they are genuine or not.

I am making that sort of power on a stock head gasket

Edited by France

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