View Full Version : Copper Head Gasket for the KA motor, I found some.

12-28-2001, 07:39 PM
I didn't know if everyone knew it or not, but in light of recent events with my car I decided to try to find out if they make metal head gaskets for the KA. I was told by someone on another forum to check with Summit Racing, they do not list it in their online catalog but I called and he says he has them in stock, different thickness' and they start at $53.95 which about the same as a factory one. I pulled my head today to see the gasket which is only like a few hundred miles old, expired. I guess it didn't like the 20psi I am running http://www.freshalloy.com/

12-28-2001, 07:47 PM
Yes, SCE Gaskets makes it for the KA. I'm not sure if Mr Gasket does or not. I talked to them at SEMA. It's good insurance, but keep in mind, the stock head gasket typically blows due to detonation. Make sure you're motor is tuned properly.


12-28-2001, 11:19 PM
Just curious, PSI240SX -- where did your head gasket blow, between the cylinders? Or into a water passage?

BTW, I have heard that copper head gaskets aren't a great idea on street engines as they tend to "weep" (i.e. leak coolant) when cold.


12-29-2001, 02:16 AM
You also should have two PERFECTLY FLAT machined surfaces when using a copper head gasket. This means that it's best to only use on a machined block and head. This will also help prevent weeping. You're also supposed to use hylomar or such spray (and friend has suggested the use of a ring of silicone over every passage/hole in the gasket on both sides) to further prevent and seepage of coolant and/or oil. Don't do any of this right... and your motor won't be the only thing weeping...


12-29-2001, 07:03 PM
Asad, it looks like it blew from a water passage to outside the motor, coolant was leaking out between the head and the block.
Demon, I am not going to pull the block just for a head gasket, I can't afford to. I had the block done less than 3000 miles ago and I am going to have the head checked first also. It might be a warped head and not the gasket. The car may or may not have overheated, I wasn't driving it when a radiator hose popped off the day before. I will use silicone as I have heard that before.

12-29-2001, 09:40 PM
I believe that the best way to go with a copper head gasket is to o-ring it.A stock gasket should be fine unless you detonate.

12-30-2001, 06:06 PM
I don't know if this will help but two of my friends have 11-second VR6 Jettas (fastest Jettas in the world at 11.7). Both of them are running stock bottom ends and are both running thicker copper head gaskets. Their heads were resurfaced, O-ringed, and they used contact cement from Caterpillar (the bulldozer place, one of their dad's works there). When we put the head on, all we did was coat the whole gasket on both sides including the mating surfaces of the head and block with the cement and it holds up great to 15psi from a TO4E. No "weeping" and all smiles. http://www.freshalloy.com/ Hope that helps!

Junior Cristovao
Turbo City Auto Body, Inc. (http://www.geocities.com/nis240shu)

12-30-2001, 10:04 PM
Also copper gaskets need to be retorqued on a race car before every race meet, not sure how often that relates to on a street car, thats why on my race car I opted for a metal gasket as anyone who works on a sr20det knows the cams have to come out to torque the head down, which is a pain in the butt, a bad design by Nissan, but when Nissan is in your blood like family you still love them even with their faults. NISSAN POWER ALL THE WAY, be on the look out for a S14 sr20det powered 1200 in the 8's, at a track near you. http://www.freshalloy.com/ http://www.freshalloy.com/

12-31-2001, 07:03 AM
From personal experience using various brands of copper head gaskets I would say stay away from them unless you are going to o-ring the head. A stock gasket w/ copper seal (you can buy it at pep boys) is your best bet. If you blow the stock gasket after copper sealing it you have another problem usually.


12-31-2001, 07:52 AM
Cooper adh. spray should be used as well in the 4 years of having the sr20 and racing it with the apexi gasket I never blow it http://www.freshalloy.com/

12-31-2001, 11:24 AM
Metal headgasket Greddy, hks, apexi once its metal and not copper, but if u cant get metal, try the copper, just keep checkng your head bolts or studs