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Author
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Topic: Copper head gaskets?
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91 5.0
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Member # 1527
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Has anyone used these gaskets before? What are the pros and cons of them? I dont mind the cost, as long as they dont blow. My car is supercharged and ive been blowing the fel pro HG's. Thanks for the input. ![[patriot]](graemlins/patriot.gif)
http://store.summitracing.com/partdetail.asp?part=SCE%2D036064
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02 GT - Zinc Yellow
91 5.0 LX - Red
Posts: 1316 | From: Fairfield | Registered: Jul 2002
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Jdub07
( O Y O )
Member # 2728
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I've heard good and bad about them. I hear you can re-use them and that they don't blow out. I also hear that the seal sucks or can suck. I don't know myself but I have a set of MAC copper header gaskets that I have yet to put on my car. I was hoping to get them on or at least on one over the weekend. When I finally do I'll post the results. ![[Big Grin]](biggrin.gif)
Posts: 7282 | Registered: Apr 2003
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91 5.0
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Member # 1527
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Anyone else??? Thanks for the info BTW.
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02 GT - Zinc Yellow
91 5.0 LX - Red
Posts: 1316 | From: Fairfield | Registered: Jul 2002
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Stimson
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Member # 51
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Don't run them on a true street car you drive everywhere. If you're blowing head gaskets, that means you're running too much timing or not enough fuel.
Posts: 2373 | Registered: Jun 2000
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91 5.0
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Member # 1527
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quote:
Originally posted by st5150:
Don't run them on a true street car you drive everywhere. If you're blowing head gaskets, that means you're running too much timing or not enough fuel.
why not use them on a street car? I was running 7 degrees of timing, 255 intank, 30lb injectors and an FMU. I cant see how any of this could cause a problem with only 6 psi.
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02 GT - Zinc Yellow
91 5.0 LX - Red
Posts: 1316 | From: Fairfield | Registered: Jul 2002
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92coupe
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Member # 1957
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i had the copper header gaskets on my old coupe werent bad at all. and dustin dude, buy some o-ringed heads problem solved. ill sale you mine for 1,500.
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94-GT BLOWN & STROKED
Posts: 1209 | From: antioch | Registered: Oct 2002
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91 5.0
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Member # 1527
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I wish I could man, but I dont have 15 bills to drop, or I would. I have too much other shit to buy right now, just to get it up again.
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02 GT - Zinc Yellow
91 5.0 LX - Red
Posts: 1316 | From: Fairfield | Registered: Jul 2002
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Jdub07
( O Y O )
Member # 2728
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I COULD BE WRONG but I also heard that if you heat them up first like with a torch it takes some molocuels out or something making for a better seal?...like I said I could be wrong...maybe I watch to much Monster Garage!! GO JESIE JAMES
Anyone have more info on this? ![[Confused]](confused.gif)
Posts: 7282 | Registered: Apr 2003
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92coupe
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Member # 1957
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ehh its cool dustin, i wasnt expecting you to throw down 1500 on my heads even though they would come with hardened pushrods and RR's. ![[Smile]](smile.gif)
but i heard with paper gaskets if you soke them in water before you install them they puff up and seal better.
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94-GT BLOWN & STROKED
Posts: 1209 | From: antioch | Registered: Oct 2002
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BOUNTY HUNTER VERT
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Member # 2754
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coper head gaskets are horrible on a street car for 1 reason. This reason is they will always leak water no matter what you do. I personally have had 7 sets leak badly. GO with a good set of felpro head gaskets and do not o ring the heads this can also cause coolant leaks into the cumbustion chamber. If you feel that you need the added strength have the block O ringed.My belief is that copper headgaskets were designed for drag only cars using block filler with little or no water. Anyways on your car if the head gasket blows its probably going for a good reason and saved your pistons. Just my .02
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89 Saleen vert Bounty Hunter racing
http://www.corral.net/photopost/showphoto.php?photo=1324&papass=&sort=1&size=medium&thecat=
Its all stock and slow wanna run.
Posts: 899 | From: ca | Registered: Apr 2003
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BOUNTY HUNTER VERT
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Member # 2754
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second off head gaskets are not paper gaskets roflmao. I think you have a bad tuning problem to be blowing head gaskets at 6 psi what is your timing and your fuel pressure under boost with the 30s maybe i can help ya with this PM me with everyting that is going on i know a lot about supercharged 5.0s and i know i could help you get this thing running right. the felpro head gaskets are not the problem as i am running 14psi through mine with 0 problems. I think its going to be your tune.
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89 Saleen vert Bounty Hunter racing
http://www.corral.net/photopost/showphoto.php?photo=1324&papass=&sort=1&size=medium&thecat=
Its all stock and slow wanna run.
Posts: 899 | From: ca | Registered: Apr 2003
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biggmatt
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Member # 1124
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could he blow em because he has warped heads????
Posts: 392 | From: pittsburg | Registered: Apr 2002
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91 5.0
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Member # 1527
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posted
quote:
Originally posted by 92coupe:
i had the copper header gaskets on my old coupe werent bad at all. and dustin dude, buy some o-ringed heads problem solved. ill sale you mine for 1,500.
so youre coupe had copper HGs and you didnt have any problem?
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02 GT - Zinc Yellow
91 5.0 LX - Red
Posts: 1316 | From: Fairfield | Registered: Jul 2002
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Stimson
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Member # 51
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posted
quote:
Originally posted by 91 5.0:
quote:
Originally posted by st5150:
Don't run them on a true street car you drive everywhere. If you're blowing head gaskets, that means you're running too much timing or not enough fuel.
why not use them on a street car? I was running 7 degrees of timing, 255 intank, 30lb injectors and an FMU. I cant see how any of this could cause a problem with only 6 psi.
The nail was pretty much hit on the head earlier...
Yes, you have a solid foundatin for a fuel system given your setup, but that doesn't mean you can't run lean. You could need more fuel pressure, ect, cut back on timing, ect.
Copper head gaskets do leak water like mentioned above. You'll have to run a low pressure radiator cap and bleed the pressure everytime you shut the car off. Not something I'd enjoy doing on a true street car.
Just say NO to O-ringed heads on a stock block. You don't need them, you can make enough power to bust the stock bottem end with out O rings. If you can't hold down your head gaskets at your power/boost level then its one of four things:
1) Gaskets not properly installed
2) Heads/block deck are not perfectly flat
3) Too much timing advance for the octane fuel you're running
4) Too lean of an air fuel ratio
Posts: 2373 | Registered: Jun 2000
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91 5.0
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Member # 1527
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posted
So what all do you suggest? What type of gaskets, and what to do about the tune?
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02 GT - Zinc Yellow
91 5.0 LX - Red
Posts: 1316 | From: Fairfield | Registered: Jul 2002
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Stimson
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Member # 51
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How is it popping the head gaskets? Is it always one side or one cylinder?
Posts: 2373 | Registered: Jun 2000
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91 5.0
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Member # 1527
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I dont remember. I dont think so, but im not sure. The first and second set it blew, blew them on about 4 different cylinders. That may have been because the head bolts were re-used. The last set, I bought new ARPs and it worked fine for a while. Then one night I ran out of gas and the only thing around was some shitty arabian gas station so I had to use that. By the time I got home, the HG was blown again. This time it only blew in one spot though. I took the heads to a machine shop today and they said they were slightly warped so I had them machined. Any thoughts? Thanks for your help by the way. Im trying desperately to have this thing running right by june 14th. Gotta go smoke some chevys ya know.
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02 GT - Zinc Yellow
91 5.0 LX - Red
Posts: 1316 | From: Fairfield | Registered: Jul 2002
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Stimson
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Member # 51
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popping several cylinders at once with out noticing major detonation can be a sign of going lean. Put it on the dyno and see what your air fuel ratio is at.
Posts: 2373 | Registered: Jun 2000
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91 5.0
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Member # 1527
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I think it blew them because the head bolts were re used and the guy that torqued them down only put them to like 54ft/lb. When I did it, I bought new bolts torqued them to 88ft/lbs and it worked fine for a while. Then it just blew on cylinder number 5.
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02 GT - Zinc Yellow
91 5.0 LX - Red
Posts: 1316 | From: Fairfield | Registered: Jul 2002
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Stimson
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Member # 51
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Cyl#5 is a common cylinder to go lean. Hook up a wide band O2 sensor to your car and see how the air fuel ratio is at WOT when you get it back together
Posts: 2373 | Registered: Jun 2000
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91 5.0
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Member # 1527
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How do I do that and where can I use one? I dont want to spend 800 bucks on one. How can I solve this problem if its so common?
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02 GT - Zinc Yellow
91 5.0 LX - Red
Posts: 1316 | From: Fairfield | Registered: Jul 2002
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Stimson
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Member # 51
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Spend some time on the dyno equiped with a wide band ![[burnout]](graemlins/burnout.gif)
Posts: 2373 | Registered: Jun 2000
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91 5.0
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Member # 1527
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posted
I was afraid you were gonna say that. I dont have another 500 bucks for a dyno tune.
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02 GT - Zinc Yellow
91 5.0 LX - Red
Posts: 1316 | From: Fairfield | Registered: Jul 2002
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Stimson
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Member # 51
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posted
Its around $100/hr just to dyno with the wide band. Just your fuel pressure between pulls to get your air fuel ratio around 12:1 and you should be fine. I think Apex Motorsports gives discounts to CaliforniaFords.com members.
Posts: 2373 | Registered: Jun 2000
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