null
Toggle menu
  • BTR Brian Tooley Racing LS1 LS6 Cylinder Head Gaskets MLS Multi Layer Pair 4.8 5.3 5.7 12589226
  • BTR Brian Tooley Racing LS1 LS6 Cylinder Head Gaskets MLS Multi Layer Pair 4.8 5.3 5.7 12589226
  • BTR Brian Tooley Racing LS1 LS6 Cylinder Head Gaskets MLS Multi Layer Pair 4.8 5.3 5.7 12589226
  • BTR Brian Tooley Racing LS1 LS6 Cylinder Head Gaskets MLS Multi Layer Pair 4.8 5.3 5.7 12589226
  • BTR Brian Tooley Racing LS1 LS6 Cylinder Head Gaskets MLS Multi Layer Pair 4.8 5.3 5.7 12589226
  • BTR Brian Tooley Racing LS1 LS6 Cylinder Head Gaskets MLS Multi Layer Pair 4.8 5.3 5.7 12589226

    • BTR Brian Tooley Racing LS1 LS6 Cylinder Head Gaskets MLS Multi Layer Pair 4.8 5.3 5.7 12589226

    Brian Tooley Racing

    $99.99
    (4 reviews) Write a Review
    SKU:
    BTR98544
    Adding to cart… category.add_cart_announcement

    Product Description

    BTR Brian Tooley Racing LS1 Cylinder Head Gaskets – MLS Multi Layer Steel (Pair)

    OEM-quality MLS head gaskets from BTR – designed as a direct replacement for LS1/LS6 applications with the strength to handle performance builds.

    BTR has sourced a multi-layer steel (MLS) head gasket that delivers the same proven performance as OEM GM units, making it an ideal choice for both rebuilds and upgrades. Manufactured by the same source as the factory gaskets, these deliver the durability, precision, and reliability you expect—while supporting the airflow and compression needs of performance LS builds. Perfect for street, strip, or boosted applications where sealing strength matters most.

    Key Benefits

    • Direct OEM replacement: Replaces GM part #12589226, making installation seamless and hassle-free.
    • Proven MLS construction: High-quality multi-layer steel design ensures excellent sealing under high cylinder pressures.
    • Performance ready: Capable of withstanding increased horsepower, boost, and nitrous applications.
    • Trusted source: Produced by the same manufacturer as OEM GM gaskets for exact fit and reliability.
    • Sold in pairs: Includes both driver and passenger side gaskets, ready for your LS engine refresh or upgrade.

    Specifications

    • Bore Size: 3.920"
    • Compressed Thickness: 0.051"
    • Construction: Multi-Layer Steel (MLS)
    • Replaces GM Part #: 12589226
    • Sold as a Pair

    Applications

    • 4.8L LS Engines
    • 5.3L LS Engines
    • 5.7L LS1 Engines
    • LS6 Engines

    Product Videos

    Videos Hide Videos Show Videos

    Custom Field

    Product Reviews

    Write a Review

    4 Reviews Hide Reviews Show Reviews

    • 5
      Top notch head gaskets

      Posted by Wade on Feb 5th 2025

      Can't go wrong with these head gaskets, very high quality! Installed on a boosted single turbo 5.3.Shipped super fast as always from Michigan Motorsports!

    • 5
      BTR LS Head gaskets

      Posted by Scot on Feb 25th 2024

      Very high quality parts. Highly recommended.

    • 5
      Fit perfectly

      Posted by Steven DeBettignies on Nov 23rd 2023

      Fit great and was packaged well! No bent corners or damaged surfaces.

    • 5
      Parts are great and you guys go above and beyond

      Posted by Steven shook on Jul 31st 2023

      Great service, stayed open later then normal hours making it possible for me to get what I needed