headgasket?

[NX95240]

i have a 95 240sx .iam getting my stuff to turbo the car. were can i get a very good headgasket for high boost? i have used the seach to look but really not found for high boost. hope some one can help me . thanks

[bruinbear714]

i have a 95 240sx .iam getting my stuff to turbo the car. were can i get a very good headgasket for high boost? i have used the seach to look but really not found for high boost. hope some one can help me . thanks

Some people use stock headgaskets, other use a Cometic metal headgasket.

To me, it makes more sense in using a stock headgasket for high boost (25psi'ish). Since you will have to go with forged pistons anyways, it'll act as your "fuse" when something goes wrong. And I would rather replace a headgasket over a piston anyday of the week.

[andrave]

only person I knew with cometic blew his ring lands as soon as he detonated. its more common to blow the stock headgasket.

[Nathan]

Felpro makes a very nice headgasket as well, in my unsubstantiated opinion: better quality than OEM.

[:: orion ::]

Stock has held up to 30psi and not blown...as well as stock head bolts.

If you wanna upgrade, great. But realize that stock is pretty damn good...

- Brian

[NX95240]

thanks for the reply guys. iam looking to run around 20 psi or so that about all . i guess i will get a stock headgasket.

[WDRacing]

Stock is fine...detonation will destroy your motor no matter what HG you have. The only time I can see switching is to use a thicker HG to lower the compression.

WD

[Aaron_9349]

Don't know if this will help, but Hussey makes a copper head gasket for our engine, and it is designed for up to 30psi. And, you can get them in different sizes, as well. I got mine from Import Performance Parts .com --- Although I haven't assembled the engine yet. Mine is stock size. It looks very durable though. I am not sure if they can be reused (ie take the head off and on more than once). I have heard some metal gaskets, like HKS, can be reused... but unsure on this.

[Aaron_9349]

Hussey Makes a 30psi Copper Head Gasket. Haven't tried it, but It looks durable.

[andrave]

copper is too much of a pita for the street. might be good for a race motor. 30 psi would be a race motor anyway.

[NX95240]

i think i will order one from cometic gasket there HP gasket is around $99 . klattr1 said that is what he will buy. i guess it will be pretty good.

[WDRacing]

I ran a comteic on my RB20 for a few years at up tp 28 psi. Worked like a champ.

WD

[Aaron_9349]

can you take those off and on, or just one use?

[NX95240]

WD , after that i know i will buy one now.going to send the money off friday.

[candela]

What do you all recommend for going thicker (to lower comp a tiny bit, prolly at leist 1.2mm after .020 resurface or so) without going metal?

I haven't heard of any other way to drop a little bit (obviously w/out lower comp pistons or overbore) other than metal HG's. Is there anything felpro or anyone else makes thats just a little thicker than stock?

[WDRacing]

can you take those off and on, or just one use?

I reused mine 4 times with no compression loss.

[WDRacing]

What do you all recommend for going thicker (to lower comp a tiny bit, prolly at leist 1.2mm after .020 resurface or so) without going metal?

I haven't heard of any other way to drop a little bit (obviously w/out lower comp pistons or overbore) other than metal HG's. Is there anything felpro or anyone else makes thats just a little thicker than stock?

I used a 2mm on my RB20, my math geek buddy figured it was close to a full point lower.

WD

[candela]

Yes but what kind? Thanks WD

[WDRacing]

HKS I believe it was...

[candela]

hmm, ya Ive done that in the past on my DSM and Supra. I figured that going metal is the only real way to get a thick gasket. I was just hoping someone woudl chime in and be like, "felpro makes a special HG part#xxx, but you have to call to get it"

I guess Ill be stickign with stock CR. THanks

[WDRacing]

I heard of a guy stacking stock HG's. Dunno what happened, I'm not trying it, but you could...8)

[candela]

thats one of the ****tiest idea ever (no offense to whoever did that)... but that is asking to blow.

[andrave]

some guy used to sell them on ebay all the time for the ka24de...haven't seen them anywhere else.

[DaveEEE]

Go with the Cometic. You won't regret it..... Stock one is good, but cometic is better IMO.

And no, the felpro headgasket is not better. It's exactly the same, just $30 cheaper from autozone!

dave

[NX95240]

iam going to order one monday . after hearing what you all said about it that my choice...

[Nathan]

And no, the felpro headgasket is not better. It's exactly the same, just $30 cheaper from autozone!dave

Hmmmm, really? I haven't seen any NEW stock ones, only used ones. One thing I noticed on both of the KA's I've torn down is pitting on the surface of the block in a pattern that is mirrored on the headgasket. Thats why I opted not to use a stock one again, i figured perhaps the felpro wouldn't do that. The felpros just seem really nice to me

[deviousKA]

Anyone used the SCE copper gasket for ka24de? http://www.cyberauto.com/index.php/Nissan240SX.txt about 7/8th of the way down the page. Prices look good and variety of thicknesses.

As far as good oem type aftermarket headgaskets, I would suggest an ITM or ROL gasket over a fel-pro anyday. Felpro does not make the greatest gaskets, we've compared a lot, and do not install felpros on any of our rebuilt engines.

For a top of the line oem type replacement gasket in standard thickness, check out rolmfg.com. BTW. they also carry replacement headbolts for ka24e/de. I use this headgasket/headbolt combo on my 2.5l (91.1mm bore). Specs of the gaskets are perfect (i compared about 5 different headgaskets to use on my engine, including a blue line felpro)

[Aaron_9349]

can the Cometic be ordered for different thicknesses?

[candela]

cometic's can be made completely custom... hwoever you want

[Jookmasta]

how much do cometic's run?