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BBC Header gaskets

Discussion in 'Engine & Performance' started by 82sbshortbed, Mar 13, 2019.

  1. 82sbshortbed

    82sbshortbed Supporting Member Supporting Member

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    This may be a dumb question but, I need header gaskets for the camaro style headers for the 454. Don't know what brand the headers are so. Are all BBC Header gaskets the same and how do I tell what gaskets I need? :shrug:
     
  2. bucket

    bucket Super Moderator Staff Member

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    You can buy gaskets for many different port sizes. The aluminum type gasket works great. Get a gasket with a port size that matches the sealing surfaces of the header flange.
     
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  3. legopnuematic

    legopnuematic Supporting Member Supporting Member

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  4. QBuff02

    QBuff02 I like Big Blocks and I cannot lie

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    I use felpro 1410's on my 454 headers, no issues.
     
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  5. 82sbshortbed

    82sbshortbed Supporting Member Supporting Member

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    Thanks for the info. I wasn't sure if I needed the square ports or round port gasket. Seen them both ways.
     
  6. nvrenuf

    nvrenuf Full Access Member

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    This ^

    They worked great on my 781's.

    You need to identify what heads you have, the easiest way is to pull the valve cover and get the (raised) casting number from between the valves. Once you have that check Mortec or google, etc to identify if they are "peanut", "oval", etc type heads. Be advised, the head types are identified by nicknames for their intake ports, not literal exhaust port shape descriptions (ie; oval heads are still square-ish on the exhaust side). Buy gaskets accordingly, I prefer Felpro "Performance" series gaskets.
     
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  7. MikeB

    MikeB Full Access Member

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    Whatever you get, make sure the gaskets don't cover any part of the exhaust port openings, especially at the top where flow is greatest. Same with the header tubes. Can't tell you how many header flanges I've had to hog out a little to match the top of the exhaust ports.:eek:

    I've always had good luck with Fel-Pro gaskets that have a steel shim sandwiched between fiber materials. I've used aluminum gaskets only for collectors, but they work awesome and can be re-used.
     
  8. Super-Dave

    Super-Dave Member

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    I have used a number of different brands over the years. Some lasted a year or so and others just a few weeks. Then my carburetor guy who races a 9 sec '64 Chevelle, turned me on to Remflex and I have never used any other brand. They are thicker and once torqued down (20fp IIRC) you never have to re-tighten.

    I can attest to that personally. I am converting my '74 square from shorty headers to long tube this week and will be using Remflex without hesitation.
     

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