SKU: 80362908441

Mr. Gasket Ultra-Seal Header Gaskets - 5921

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Description

Mr. Gasket Ultra-Seal Header Gaskets - 5921Overview: Manufactured from high temperature steel core graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate gasket failure. Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head. Conforms to and seals minor surface irregularities. High recovery material allows header or manifold flange to stay sealed if flange loses clamp

Overview:

Manufactured from high-temperature steel core/graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate gasket failure. Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head. Conforms to and seals minor surface irregularities. High recovery material allows header or manifold flange to stay sealed if flange loses clamp-load. Can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track use.

Features:

    Application:

    Year Make Model Submodel Engine Size
    1967 - 1978 Pontiac Bonneville 400/6.6 V8
    1967 Pontiac Catalina 428/7 V8
    1965 - 1969 Pontiac Catalina
    1970 - 1978 Pontiac Catalina 400/6.6 V8
    1970 - 1976 Pontiac Catalina 455/7.5 V8
    1965 - 1970 Pontiac Bonneville
    1966 Pontiac Bonneville 421/6.9 V8
    1971 - 1976 Pontiac Bonneville 455/7.5 V8
    1967 Pontiac Firebird 326/5.3 V8
    1968 - 1977 Pontiac Firebird 350/5.7 V8
    1971 - 1976 Pontiac Firebird 455/7.5 V8
    1970 - 1977 Pontiac Catalina 350/5.7 V8
    1968 - 1979 Pontiac Firebird 400/6.6 V8
    1977 Pontiac Bonneville 350/5.7 V8
    1973 - 1975 Pontiac Grand Am 400/6.6 V8
    1965 - 1970 Pontiac Grand Prix
    1966 Pontiac Grand Prix 389/6.4 V8
    1967 - 1977 Pontiac Grand Prix 400/6.6 V8
    1967 Pontiac Grand Prix 428/7 V8
    1971 - 1976 Pontiac Grand Prix 455/7.5 V8
    1971 - 1978 Pontiac Grand Safari 400/6.6 V8
    1971 - 1976 Pontiac Grand Safari 455/7.5 V8
    1973 - 1975 Pontiac Grand Am 455/7.5 V8
    1973 - 1975 Pontiac Grand Am 350/5.7 V8
    1972 - 1975 Pontiac Grandville 455/7.5 V8
    1973 - 1975 Pontiac Grandville 400/6.6 V8
    1965 - 1970 Pontiac GTO
    1966 Pontiac Grand Prix 421/6.9 V8
    1971 - 1973 Pontiac GTO 400/6.6 V8
    1971 - 1973 Pontiac GTO 455/7.5 V8
    1965 - 1967 Pontiac LeMans 326/5.3 V8
    1968 - 1977 Pontiac LeMans 350/5.7 V8
    1968 - 1977 Pontiac LeMans 400/6.6 V8
    1970 - 1976 Pontiac LeMans 455/7.5 V8
    1971 Pontiac Grandville
    1966 Pontiac Star Chief 389/6.4 V8
    1965 Pontiac Star Chief
    1966 Pontiac Star Chief 421/6.9 V8
    1972 - 1976 Pontiac Ventura 350/5.7 V8
    1965 - 1967 Pontiac Tempest 326/5.3 V8
    1967 Pontiac Executive
    1968 - 1970 Pontiac Executive 400/6.6 V8
    1968 - 1970 Pontiac Tempest 350/5.7 V8
    1968 - 1969 Pontiac Executive 428/7 V8
    1968 - 1970 Pontiac Tempest 400/6.6 V8
    1970 Pontiac Executive 455/7.5 V8
    1975 - 1977 Pontiac Grand LeMans 350/5.7 V8
    1975 - 1976 Pontiac Grand LeMans 455/7.5 V8
    1975 - 1977 Pontiac Grand LeMans 400/6.6 V8
    1976 - 1977 Pontiac Grand Prix 350/5.7 V8
    1966 Pontiac Bonneville 389/6.4 V8
    1967 Pontiac Bonneville 428/7 V8

    Specs:

    Brand Mr. Gasket
    Collector Gaskets Included No
    Emission Code 5
    Engine Pontiac V8
    Gasket Line Ultra-Seal
    Material Ultra-seal
    Port Shape Oval / D
    Port Size 1.46" x 1.93"
    Product Type Header Gaskets
    Thickness .062"
    Warning California Proposition 65
    Warranty Limited 90 Day Warranty
    Weight 0.38
    Shipping Notes
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    Exchange/Return Notes
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    SKU: 80362908441

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    4.3 ★★★★★
    Based on 21 reviews
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    C
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    Customer
    Lowell, US
    ★★★★★ 5
    Purchase or perish.
    Format: Paperback, Format: Paperback
    I don't think Mike can produce anything below 5 stars. In his recent Christmas episode on the Naked Bible Podcast I was a bit wary of listening to it. I realize this is a review of his book here, but let me make my point. The problem with not wanting to listen to his Christmas episode is that I don't really care if Christmas was/is a pagan holiday. So, honestly, it wasn't appealing to me. Somehow I ended up listening to it, and I'm telling you the amount of information he crammed in there was FASCINATING. I'm not kidding. I was so tired of hearing that subject (because I've been born and raised into Christianity), but Mike and Trey did their thing and it had me on the edge of my metaphorical seat the entire time. If you listen to that episode (Naked Bible Episode 195) you'll see exactly what I'm talking about. And what's the point of all that I just said? It's that Mike doesn't do anything half way. All that he puts out is serious work that is worthy of much consideration. No Hillary v. Trump fact checking here (though I'm sure he'd encourage you to research what he's saying). The point is, however, that not everyone has the training that he or his contemporaries have. And THAT is exactly why it is paramount that we rely upon scholars who have said extensive training. I challenge you with this (something I've challenged myself to accept): You essentially know nothing about the Bible if you don't have not just Heiser's background, but other scholars such as John H. Walton. There are many to list, but Walton would be a good companion to list next to Heiser. If you're the lay-person, do yourself a favor and pick up this work, or The Unseen Realm (or both!) and any of Walton's work. Open up your mind and challenge yourself to realize that unless you are incredibly familiar with the Ancient Near East's way of life and thought processes, then it's highly likely that you don't actually understand what is going on when you read the Bible. Enter "The Bible Unfiltered." Considerations for the seminary student: This is a great book for those who need a quick reference on a particular subject. Heiser's name is well known, and thus to reference this book in one's papers, even for a one-liner, is to reference legitimate scholarship. I'm not advocating that one does one's entire paper off of just one chapter from this book, but my point is more-so that with Heiser's reputation it will be known that you're not quoting Joe Scholar who earned his PhD in I Do What I Want. If you know Mike then you know that he's done a lot of work to present to you CONTEXTUAL research on any given listed topic. For that alone the price is worth it (though it undoubtedly cost him more to do the research that it does for us to purchase the book). Considerations for the lay-person: 1. On p. 7, Heiser says, "If Bible study doesn't seem like work to you, you aren't really doing it." Yes, that's harsh, but so was Phinehas, Peter, Paul, and Jesus. (Even Bonhoeffer was harsh in his "The Cost of Discipleship")! Over and over again Heiser says on his podcast that Bible reading is not actually Bible STUDY (not yelling, I just don't have italics in this comment box). 2. This book is great for having a quick reference for subjects. You do not have to read the book in order to understand the content of any given chapter. I use this book to help direct me to other scriptures that I can't seem to remember. Here, Heiser treats topics with brevity, yet with depth at the same time--depth that stems from years of immersing hisself in the original cultural context, the surrounding culture's contexts, and original languages of the Bible. In other words, this book will act, for the lay person, as an appetizer that gets you excited for the full meal and subsequently spark a desire within you to finally take seriously contextual Bible study. If you've never read Heiser's stuff before, this is a great place for you to get introduced to his work. From here I'd recommend getting The Unseen Realm, and then Reversing Hermon. Follow all his other works at drmsh.com, nakedbiblepodcast.com, and moreunseenrealm.com (I'm not getting paid to say all of this). Considerations for the scholar: Rid yourself of your presuppositions, get with the times, and adopt the supernatural worldview of the Bible's authors, because yours isn't supernatural enough. (Can that be considered speaking the truth in love?...) (Pictures won't rotate for some reason. Sorry!). My hand on the book next to the Schuyler Bible shows the size of the book.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 3, 2018
    P
    Verified Purchase
    Pastor Jamie Strickler
    Chelsea, US
    ★★★★★ 5
    Excellent Resource
    Format: Paperback
    Heiser is always top notch!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 22, 2026
    A
    Verified Purchase
    Alexandra benulis
    Louisville, US
    ★★★★★ 5
    5 stars
    Format: Paperback
    Great book.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 7, 2026
    S
    Verified Purchase
    Stephen
    Los Angeles, US
    ★★★★★ 4
    Content is better than the title!
    Format: Paperback
    The best quality of Heiser as a scholar/writer in my opinion is that he appreciates the academy but does not acquiesce to its influence. This is seen most in his correct interpretation of the identity of the sons of God in Gen 6 and the identity of Satan in Is 14 and Ez 28 etc. which were long abandoned and scorned by the academy. All 60 articles are well written with clarity and brevity!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 6, 2019
    D
    Verified Purchase
    D Behrens
    Battle Creek, US
    ★★★★★ 5
    Great Read
    Format: Paperback
    An outstanding collection of thought provoking essays. This makes a great daily 5-10 min read.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 14, 2026

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