Header gaskets - Team Camaro Tech
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post #1 of 13 (permalink) Old Jun 5th, 14, 11:12 AM Thread Starter
Mike
 
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Header gaskets

What are the best sealing header gaskets for a big block with factory
aluminum winters square port heads.
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post #2 of 13 (permalink) Old Jun 5th, 14, 11:40 AM
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Re: Header gaskets

Go with "copper gasket" hands down something like these will work.

http://www.ebay.ca/itm/SQUARE-PORT-C...-/130721963792

67 RSSS Van Nuys, 4th week Sept,1966
ps,tilt,headrest,spd warn,pw,am/fm,delux int,
remote mirror,rear defrost,tint glass.etc...
TKO 600 Extreme,12bolt 3:73 gears.
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post #3 of 13 (permalink) Old Jun 6th, 14, 02:29 AM
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Re: Header gaskets

Quote:
Originally Posted by 67RSSS View Post
Go with "copper gasket" hands down something like these will work.

http://www.ebay.ca/itm/SQUARE-PORT-C...-/130721963792
Would this apply to small blocks as well. I was told Ram-Flex gaskets are the way to go.

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post #4 of 13 (permalink) Old Jun 6th, 14, 05:32 AM
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Re: Header gaskets

Check out these gaskets from Summit Racing. http://www.summitracing.com/parts/sc...make/chevrolet. I haven't used them long enough to make review. They have got to be better than the hard paper gaskets. I have used the copper collector gaskets and I will not use anything else anymore.
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post #5 of 13 (permalink) Old Jun 6th, 14, 06:57 AM
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Re: Header gaskets

X3 on some sort of copper gasket, I also used some of those locking header bolts, all the expanding and shrinking from the heat of the headers is what causes a lot of gaskets to fail as the bolts loosen up and loose even holding pressure accross the seal.

Don't have a long term review yet as car is still in project stage, but engine has been ran numerous times and so far so good on the seal.
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post #6 of 13 (permalink) Old Jun 6th, 14, 09:15 AM
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Re: Header gaskets

Makes no difference if BB or SBC copper is the best way to go for header gaskets. I Also use copper head gaskets .

67 RSSS Van Nuys, 4th week Sept,1966
ps,tilt,headrest,spd warn,pw,am/fm,delux int,
remote mirror,rear defrost,tint glass.etc...
TKO 600 Extreme,12bolt 3:73 gears.
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post #7 of 13 (permalink) Old Jun 6th, 14, 09:34 AM
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Re: Header gaskets

The Rem- Flex ( Not Ram-Flex) gaskets are an option for those with warped matting surfaces. They are extremley pliable and help in sealing surfaces that are uneven. You will note that they are extremley thick. Keep in mind that these are also VERY FRAGILE and can break easily they require great care when installing and handling them.

The inexpensive headers with the thin header flanges are prone to warpage and often leak because of it. The Rem-Flex have being thicker fill in the gaps so to speak and offer a better matting surface in these instances.

67 RSSS Van Nuys, 4th week Sept,1966
ps,tilt,headrest,spd warn,pw,am/fm,delux int,
remote mirror,rear defrost,tint glass.etc...
TKO 600 Extreme,12bolt 3:73 gears.
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post #8 of 13 (permalink) Old Jun 6th, 14, 10:19 AM
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Re: Header gaskets

I have used Percy's aluminum header gaskets, they were good, but the Rem-Flex's are awsome. I have had the RemFlex on my camaro and my friends 440 Challanger for 5 yrs now, they never come loose or leak. Great product,

With the Remflex you have to be VERY carefull not to bend them or they break. Remflex sent me a free replacement, even after I told them it was my fault it broke. Great customer service.

67 RS Convertible, 355ci, 650cfm, 5-speed, 12-bolt, 3.90 gears. 12.7 @ 110 mph
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post #9 of 13 (permalink) Old Jun 6th, 14, 10:19 AM
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Re: Header gaskets

I have used Percy's aluminum header gaskets, they were good, but the Rem-Flex's are awsome. I have had the RemFlex on my camaro and my friends 440 Challanger for 5 yrs now, they never come loose or leak. Great product,

With the Remflex you have to be VERY carefull not to bend them or they break. Remflex sent me a free replacement, even after I told them it was my fault it broke. Great customer service.

67 RS Convertible, 355ci, 650cfm, 5-speed, 12-bolt, 3.90 gears. 12.7 @ 110 mph
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post #10 of 13 (permalink) Old Jun 6th, 14, 10:24 AM
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Re: Header gaskets

I have had great success with these
Mr. Gasket 7401G - Mr. Gasket Aluminum Exhaust Gaskets Details




•Reusable Colored Tie Straps

•Made From Dead Soft Aluminum

•Conforms Easily To Surface Irregularities

•Creates A Tight Leak Proof Seal
•Ideal For Race/Street/Tow Vehicles And Motor Homes
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post #11 of 13 (permalink) Old Jun 6th, 14, 10:39 AM
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Dave
 
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Re: Header gaskets

Quote:
Originally Posted by Marktat View Post
I have used Percy's aluminum header gaskets, they were good,
I used to use Percy gaskets with Stage 8 locking header bolts when I was racing my 93 Z28. Never leaked or loosened up. The header bolts were 'spensive, but worth it if you don't like having to tighten up your headers all the time.

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post #12 of 13 (permalink) Old Jun 6th, 14, 11:29 PM
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Re: Header gaskets

Quote:
Originally Posted by 67RSSS View Post
The Rem- Flex ( Not Ram-Flex) gaskets are an option for those with warped matting surfaces. They are extremley pliable and help in sealing surfaces that are uneven. You will note that they are extremley thick. Keep in mind that these are also VERY FRAGILE and can break easily they require great care when installing and handling them.

The inexpensive headers with the thin header flanges are prone to warpage and often leak because of it. The Rem-Flex have being thicker fill in the gaps so to speak and offer a better matting surface in these instances.
Thanks Chris. My Dyno guy in North Van Precision Racing Motors told me the same thing, that they are very brittle, but once installed they will never leak. I like the idea of having a header that you install once, then walk way. I currently have the aluminum ones on my car, but have not fired it up yet. Thinking of swapping them out.

What part of town are you in?

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post #13 of 13 (permalink) Old Jun 7th, 14, 01:08 AM
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Re: Header gaskets

Quote:
Originally Posted by flat tire View Post
I have had great success with these
Mr. Gasket 7401G - Mr. Gasket Aluminum Exhaust Gaskets Details




•Reusable Colored Tie Straps

•Made From Dead Soft Aluminum

•Conforms Easily To Surface Irregularities

•Creates A Tight Leak Proof Seal
•Ideal For Race/Street/Tow Vehicles And Motor Homes
These are the ones I have on my car now. Was curious how they compare to the Rem-Flex. Seems like both are a good option as are the copper units. I guess it comes down to cost and preference. I have no experience with header gaskets so I am doing the research now to learn a thing or two. Great Thread.

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