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post #1 of (permalink) Old 10-22-2002, 03:59 PM Thread Starter
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Header Install(Stud or Not)

When a header is installed should you stud the block or use the two studs that are there and bolts for the rest? TIA. Jim
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post #2 of (permalink) Old 10-22-2002, 04:55 PM
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Re: Header Install(Stud or Not)

you can do it either way, but I did it the way it came from the factory...
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post #3 of (permalink) Old 10-22-2002, 07:24 PM
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Re: Header Install(Stud or Not)

I kinda went all out a few months ago. Bought both a rebuilt head with an aftermarket cam and a new header. The New head did not come with studs in it, and I really did not want to use the studs out of the old head. So, I decided to use bolts for the entire header install. I have not had any problems yet. But, I am keeping my fingers crossed [img]images/graemlins/smile.gif[/img]
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post #4 of (permalink) Old 10-22-2002, 07:36 PM
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Re: Header Install(Stud or Not)

I studded both sides of mine, used grade 8.8 studs with permanent locktite . Works nice . Hint: on headers, use the stock steel manifold gasket with just a light coating of Permatex Copper Seal . This way, it isolates the header's steel away from the aluminum head, and the aluminized coating of the gasket takes care of the aluminum head issue. Good lock washers and nuts do the rest....not to mention it can be re-used at least 5 times that way.
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post #5 of (permalink) Old 10-23-2002, 08:25 AM
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Re: Header Install(Stud or Not)

Excelent advice sarge! Should the copper spray gasket be used on the head gasket?
On my calmini header, I had replaced all the bolts/studs with water pump fan studs (I forget the "HELP" part number) and have had no problems. They are too short though, I'll have to get some longer ones so I can use lock washers on the studs. I have not retorqued the bolts so I am not sure if they have retained their torque.
Is the locktite used in the engine head also or just the nuts?
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post #6 of (permalink) Old 10-23-2002, 07:54 PM
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Re: Header Install(Stud or Not)

Use the locktite on the studs when you put them in the head . This will prevent the steel stud from oxidizing into the aluminum head . I use the tube type Copper Seal on the head side of the steel gasket , I've yet to recoat it in the last 5 times it's been off . I did all this due to constantly doing engine parts tests on my motor, so I almost needed a good zipper for all the parts .
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post #7 of (permalink) Old 10-24-2002, 04:36 AM Thread Starter
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Re: Header Install(Stud or Not)

Only unfortunate thing is the original gasket was in pieces when I took it off. Should I use anything on the thorley gasket? What is the thread and length of rhe studs?Another unrelated question: I have an aftermarket O2 sensor ands it seems awful close to the fender well. Anyone else have this problem? Can I add a 90 degree fitting? Thanks. Jim
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post #8 of (permalink) Old 10-24-2002, 06:04 PM
 
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Re: Header Install(Stud or Not)

If the O2 senser is close to the frame, check your motor mount. It is probably in need of replacing.
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post #9 of (permalink) Old 10-24-2002, 06:55 PM Thread Starter
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Re: Header Install(Stud or Not)

Found the problem tonight. There was a jack stand under the Zuke and the header was banging against it. Last night in the dark I didn't see it. Thanks for the help. [img]images/graemlins/smile.gif[/img] Jim
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