Headpipe gaskets 71 Big Block
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Instructor
Joined: Apr 2021
Posts: 142
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From: Readfield, Maine
Headpipe gaskets 71 Big Block
Having problem with the headpipe donut gaskets staying together. They are a pain in the neck to even get them on over the flange and they are also very soft and break and split very easily. In the very far past
they made gaskets that were very hard and had a snug fit (not an impossible fit). I got gaskets from a well known corvette supplier and from Fel-Pro and were the same type. Does anyone know of a supplier that
makes a more durable gasket?
they made gaskets that were very hard and had a snug fit (not an impossible fit). I got gaskets from a well known corvette supplier and from Fel-Pro and were the same type. Does anyone know of a supplier that
makes a more durable gasket?
Is my vette stock?? HAHA
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when I used them I found some that looked like they where an aluminum composite. I will see if I can find them or something better at Summit for you
Is my vette stock?? HAHA
Joined: Oct 2015
Posts: 20,212
Likes: 9,350
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
this is what summit offers. THey list 2 different inside diameters...im guessing you have the smaller one and thats why they split
https://www.summitracing.com/search/...anifold+gasket
https://www.summitracing.com/search/...anifold+gasket
Is my vette stock?? HAHA
Joined: Oct 2015
Posts: 20,212
Likes: 9,350
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
the Mahle one has to be ordered from the manufacturer
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From: North of Toronto - Ontario
Measure the diameter of the donut sleeve for your pipe, some are different sizes (some made at the exhaust shop are random sizes...)
Mine used a FEL-PRO 9587 donut which is 2-17/32 inside diameter and just fit the sleeve nicely had some flex to it rather than some of the sintered ones that have very little give at all
Get mine through rockauto or summit depending on what else i need
M
Mine used a FEL-PRO 9587 donut which is 2-17/32 inside diameter and just fit the sleeve nicely had some flex to it rather than some of the sintered ones that have very little give at all
Get mine through rockauto or summit depending on what else i need
M
Thread Starter
Instructor
Joined: Apr 2021
Posts: 142
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From: Readfield, Maine
Yes I do have the sleeve in the head pipe for the donut gasket to fit over. the Fel Pro gaskets as I said were of a graphite material that I could crush with one hand. The tighter i made it the gasket started to disintegrate between
the exhaust manifold and the head pipe. I will give Mahle a call and see what they can offer.
the exhaust manifold and the head pipe. I will give Mahle a call and see what they can offer.
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check RA ... they're showing several from Mahle, Victor and FP --- including sintered metal in both sizes.
https://www.rockauto.com/en/catalog/...et+/+seal,5836
https://www.rockauto.com/en/catalog/...et+/+seal,5836
Thread Starter
Instructor
Joined: Apr 2021
Posts: 142
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From: Readfield, Maine
Ralph, that is exactly the material that was used until whatever years after 1971. Of course they stopped using asbestos for health reasons. I guess i will be calling RockAuto and Summit tomorrow and give them some measurements.
