Which head gasket?

[autoxerKA24E]

I am rebuilding an SR20DET red top and I want to know what head gasket I should use. I have seen the Cometic gasket in different thicknesses, but I am not sure which one would be best for my application. The motor is a stock short block with a ported head, Brian Crower stage 3 cams, Brian Crower springs and retainers, and Greddy rocker arm stoppers. I plan to boost about 15psi with the stock turbo until I upgrade to either the stock S14 turbo or the GT3071R. Any help on which head gasket would be greatly appreciated.

I currently autocross my 1990 240SX hatch in SM.

[CSUPUEBLOTIM]

If price is an issue then Cosworth. If not, go with like an Apexi. The Cometic head gaskets get a lot of bad rep for some reason.

[240_SeX]

Also keep in mind that going too thick has a tendency to slightly change cam timing due to the added space between the black and head with the same lenght timing chain.
Modified by 240_SeX at 4:02 PM 2/5/2009

[Sileighty_85]

Apexi or Power Enterprise as a 1.5 mil Done.

Although you may need to have the head decked so depedning on how much is shaved off depends on the thickness of the head

[the converted]

Cosworth

[redsx13]

get some ARP studs while your at it.

[Rosco]

It is always a good practice to have your head and block decked to ensure a good seal. Most of the people who have a bad experience with Cometic fail to do this. Ask Jeff at 240sxmotoring.com, he hasn't had any problems with Cometic last I spoke with him.

[chicos240]

I have been using a Cometic for about 2 years. I have also pulled the head off multiple times(at least 3) and it is still going strong. Just make sure you have everything decked and shiney!

[autoxerKA24E]

Ok, seems like there is a variety of opinions. I will look at the different manufactures that have been recommended. I will be upgrading to ARP studs also and I found there are two different part numbers. When I emailed ARP about the difference all I got back was the following.102-4701 is M11, ARP2000 material.202-4303 is M12, 8740 material. Which do you use and is there any particular reason why?

Thanks,Joshua1990 240SX hatch SR20DETSCCA #7 SM

[Clawhammer]

I wanted a cosworth. I got an apexi cause they were on backorder with no eta.

15 pounds is pushing it on the t25.

More research required.

[n240sxfnatic]

If price is an issue then Cosworth. If not, go with like an Apexi. The Cometic head gaskets get a lot of bad rep for some reason.

Cause they suck balls. SOME will seal fully but not all of them. There is a pic floating around that shows how bad they seal, for only like $30 more you can get a cosworth and they did a lot better.