Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Shop Muscle Car Headers & Exhaust At Speedway Motors

Speedway Motors has the muscle car headers and mufflers you need, at a price you can afford. Check out our huge inventory of chassis headers, LS1 swap headers and tight-fit block hugger headers, all available with durable ceramic AHC coating, polished, or stainless steel. Don't forget about our cast iron exhaust manifolds and dual exhaust kits as well. With an awesome selection of high performance Flowmaster mufflers, exhaust wrap, glasspacks, and exhaust tips, Speedway can help you get the roar you want from your muscle car without the roar from your wife for spending too much money!

"Muscle Car, Gaskets and Seals" Page 1 of 2

  • Speedway Extreme Gaskets, 2-1/2 Inch Collector Gaskets
    Speedway Extreme Gaskets, 2-1/2 Inch Collector Gaskets
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    • Reusable triple-layer gasket
    • Stainless steel with a heat-resistant, rubber-based inner core
    • 0.085” thick, ultra pliable
    • Easily conforms to surface irregularities to create a tight, leak-proof seal
  • Schoenfeld Headers 0450 Small Block Mopar Header Gaskets
    Schoenfeld Headers 0450 Small Block Mopar Header Gaskets
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                Schoenfeld header gaskets for Small Block Mopar 273-318-340-360.
            
  • Fel-Pro Gaskets 1470 Exhaust Header Gasket for SBC ZZ4/Fastburn
    Fel-Pro Gaskets 1470 Exhaust Header Gasket for SBC ZZ4/Fastburn
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    This header exhaust gasket is used on most GM ZZ4 crate engines with Fastburn style heads (with raised 'D' shaped exhaust ports).

  • Dynatech 794-50001 B/B Chevy Fiber Exhaust Header Gaskets
    Dynatech 794-50001 B/B Chevy Fiber Exhaust Header Gaskets
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    These Dynatech® header exhaust gaskets are manufactured at the highest quality for racing and high performance applications. They are CAD designed for the most precise fit possible.  Fits Big Block Chevy 396-454 V-8 engines. 

    Sold in pairs.

  • Fel-Pro Gaskets 1427 Ford N351 Exhaust Header Gaskets
    Fel-Pro Gaskets 1427 Ford N351 Exhaust Header Gaskets
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                Fel-Pro Blue Stripe exhaust header gaskets for Ford N351 cylinder heads.
            
  • Speedway Extreme Gaskets, 3 Inch Collector Gaskets
    Speedway Extreme Gaskets, 3 Inch Collector Gaskets
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    • Reusable triple-layer gasket
    • Stainless steel with a heat-resistant, rubber-based inner core
    • 0.085” thick, ultra pliable
    • Easily conforms to surface irregularities to create a tight, leak-proof seal
  • Speedway Extreme Gaskets, Small Block Chevy, 1-5/8 Inch Rectangular Port
    Speedway Extreme Gaskets, Small Block Chevy, 1-5/8 Inch Rectangular Port
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    • Reusable triple-layer exhaust gasket
    • Stainless steel with a heat-resistant, rubber-based inner core
    • 0.085” thick, ultra pliable
    • Available for many popular flange configurations
    • Easily conforms to surface irregularities to create a tight, leak-proof seal
    • Works well with a wide range of flange surfaces and block and head materials
  • Schoenfeld Headers 0150 S/B Chevy Round Port Exhaust Header Gaskets
    Schoenfeld Headers 0150 S/B Chevy Round Port Exhaust Header Gaskets
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    Schoenfeld header exhaust gaskets for Small Block Chevy with 1-5/8" diameter round ports.

  • Collector Gasket, 3 Inch I.D.
    Collector Gasket, 3 Inch I.D.
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                Collector gaskets available in several sizes. 
            
  • Dynatech 3-Layer Stainless Steel 6.1L Hemi Header Gaskets, Pair
    Dynatech 3-Layer Stainless Steel 6.1L Hemi Header Gaskets, Pair
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    A great exhaust system starts at the beginning - the flange and gaskets.  Dynatech®'s triple-layer stainless steel exhaust header gaskets are designed to ensure a perfect seal every time. 

    • 3-layer
    • Stainless steel
    • For 6.1L SRT Hemi
  • Copper Collector Exhaust Gaskets, 3 Inch
    Copper Collector Exhaust Gaskets, 3 Inch
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                These copper collector gaskets are embossed port ridge for a perfect seal. Cure the "leaky header blues" with these copper exhaust gaskets. Die cut and dead soft. Constructed of the finest .041 copper material and will seal where most gaskets fail. Include stainless steel fasteners. Reusable.
            
  • Small Block Ford Copper Exhaust Gaskets
    Small Block Ford Copper Exhaust Gaskets
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    Copper exhaust gaskets are die cut and dead soft. Embossed port ridge for a perfect seal. Cure the "leaky header blues" with these copper exhaust gaskets. Constructed of the finest .041 copper material and will seal where most gaskets fail. Reusable.

    • 1-3/8" tall x 1-1/8" wide   
    • Overall Length:  16-3/8"
    • Overall Height:  2-1/8"
    • Thickness @ Port Seal:  .095"
  • Dynatech Small Block Chevy Fiber Exhaust Header Gaskets, Spread Port
    Dynatech Small Block Chevy Fiber Exhaust Header Gaskets, Spread Port
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    These Dynatech® header gaskets are manufactured at the highest quality for racing and high performance applications. They are CAD designed for the most precise fit possible. 

    • SBC spread port
    • Quality Fiber construction
    • Sold in pairs
  • Extreme Exhaust Gaskets, Big Block Chevy, 2 Inch Round Port
    Extreme Exhaust Gaskets, Big Block Chevy, 2 Inch Round Port
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    • Reusable triple-layer exhaust gasket
    • Stainless steel with a heat-resistant, rubber-based inner core
    • 0.085” thick, ultra pliable
    • Available for many popular flange configurations
    • Easily conforms to surface irregularities to create a tight, leak-proof seal
    • Works well with a wide range of flange surfaces and block and head materials
  • SuperSeal Small Block Chevy Square Port Exhaust Gaskets
    SuperSeal Small Block Chevy Square Port Exhaust Gaskets
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                SuperSeal offers premium quality components & materials and exceeds all sealing requirements established by gasket manufacturers. For Small Block Chevy stock style square port heads.
            
  • Tru-Ram Small Block Chevy Exhaust Manifold Gasket Set
    Tru-Ram Small Block Chevy Exhaust Manifold Gasket Set
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                These  header/manifold exhaust gaskets are fabricated   from  large-fiber gasket material bonded by a high-heat resistant   compound.  They are precision die cut for each application, and provide   excellent  sealing and durability. 
    • Gasket set for Tru-Ram SBC exhaust manifolds (930-0301)
    • Large-fiber gasket material
    • High-heat resistant compound
    • Precision die cut for each application
    • Provide excellent sealing and durability
  • Dynatech   Ford 4.6L 2V and 5.4L 3V Stainless Exhaust Header Gaskets
    Dynatech Ford 4.6L 2V and 5.4L 3V Stainless Exhaust Header Gaskets
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    Dynatech® 3-Layer Stainless header exhaust gaskets are a perfect match with stainless steel headers & flanges. Fits Ford 4.6L 2V and 5.4L Triton 3V heads. 

    Sold in pairs.
  • Dyantech 3-Layer Stainless Steel 5.4L Ford Header Gaskets, Pair
    Dyantech 3-Layer Stainless Steel 5.4L Ford Header Gaskets, Pair
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    A great exhaust system starts at the beginning - the flange and gaskets.  Dynatech®'s triple-layer stainless steel exhaust header gaskets are designed to ensure a perfect seal every time. 
    • 3-layer
    • Stainless steel
    • For 5.4L Ford (pre 2004)
  • Small Block Chevy Copper Exhaust Gaskets, Square Port
    Small Block Chevy Copper Exhaust Gaskets, Square Port
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    Copper exhaust gaskets are die cut and dead soft. Embossed port ridge for a perfect seal. Cure the "leaky header blues" with these copper exhaust gaskets. Constructed of the finest .041 copper material and will seal where most gaskets fail. Reusable.

    • 1-3/8" x 1-3/8"
    • Can be trimmed to as large as 1.5" x 1.5"
  • Small Block Chevy Round Port Exhaust Header Gaskets
    Small Block Chevy Round Port Exhaust Header Gaskets
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                Exhaust header exhaust gaskets with round ports for Small Block Chevy (SBC) V8 265-400.
            
  • Dynatech 794-20001 GM LS Fiber Exhaust Header Gaskets
    Dynatech 794-20001 GM LS Fiber Exhaust Header Gaskets
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    These Dynatech® header exhaust gaskets are manufactured at the highest quality for racing and high performance applications. They are CAD designed for the most precise fit possible. 

    Sold in pairs. 

  • Speedway Extreme Gaskets, 3-1/2 Inch Collector Gaskets
    Speedway Extreme Gaskets, 3-1/2 Inch Collector Gaskets
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    • Reusable triple-layer gasket
    • Stainless steel with a heat-resistant, rubber-based inner core
    • 0.085” thick, ultra pliable
    • Easily conforms to surface irregularities to create a tight, leak-proof seal
  • Schoenfeld Headers 0350 Small Block Ford 289-351W Header Gaskets
    Schoenfeld Headers 0350 Small Block Ford 289-351W Header Gaskets
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                Schoenfeld header gaskets for Small Block Ford 289-351W and GT40 heads. Ports measure 1-1/4" wide x 1-3/4" tall.
            
  • Small Block Chevy Copper Exhaust Gasket - D-Port Heads
    Small Block Chevy Copper Exhaust Gasket - D-Port Heads
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                Copper exhaust gaskets are die cut and dead soft. Embossed port ridge for a perfect seal. Cure the "leaky header blues" with these copper exhaust gaskets. Constructed of the finest .041 copper material and will seal where most gaskets fail. Reusable.  Gasket is beveled around the ports, the thickness of the  gasket it .0425".  The height from the bottom of the gasket to the top of  that bevel is .1000"
            
  • Dynatech   794-10001 5.7L Hemi Stainless Steel Header Gaskets
    Dynatech 794-10001 5.7L Hemi Stainless Steel Header Gaskets
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    Dynatech® 3-Layer Stainless Steel header gaskets are a perfect match with stainless steel headers & flanges. Fits Mopar/Chrysler/Dodge 5.7L HEMI V-8 engines.  

    Sold in pairs.

  • Fel-Pro Gaskets 1404 Small Block Chevy Square Port Exhaust Header Gaskets
    Fel-Pro Gaskets 1404 Small Block Chevy Square Port Exhaust Header Gaskets
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                Fel-Pro Blue Stripe premium quality Small Block Chevy exhaust gaskets for headers.
            
  • Extreme Exhaust Gaskets, Small Block Chevy, 1-3/4 Inch Rectangular Port
    Extreme Exhaust Gaskets, Small Block Chevy, 1-3/4 Inch Rectangular Port
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    • Reusable triple-layer exhaust gasket
    • Stainless steel with a heat-resistant, rubber-based inner core
    • 0.085” thick, ultra pliable
    • Available for many popular flange configurations
    • Easily conforms to surface irregularities to create a tight, leak-proof seal
    • Works well with a wide range of flange surfaces and block and head materials
  • Extreme Exhaust Gaskets, Flathead Ford, 1-5/8 Inch Header Flange
    Extreme Exhaust Gaskets, Flathead Ford, 1-5/8 Inch Header Flange
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                These reusable triple-layer exhaust gaskets are perfect for your Ford Flathead.  They are round port style and easily conform to surface irregularities to create a tight, leak-proof seal.  These header gaskets are stainless steel with a heat-resistant, rubber-based inner core.
    • 1-5/8" flange
    • Reusable triple-layer gasket
    • Stainless steel with a heat-resistant, rubber-based inner core
    • 0.085” thick, ultra pliable
    • Available for many popular flange configurations
    • Easily conforms to surface irregularities to create a tight, leak-proof seal
    • Works well with a wide range of flange surfaces and block and head materials
    • Set of 6
  • Extreme Lake Style Header Exhaust Hookup Gasket, 2-1/2 Inch
    Extreme Lake Style Header Exhaust Hookup Gasket, 2-1/2 Inch
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                These reusable triple-layer exhaust gaskets are perfect for your Lake style headers with bottom collectors.   They easily conform to surface irregularities  to create a tight, leak-proof seal.  These header gaskets are stainless  steel with a heat-resistant, rubber-based inner core.
    • 2-1/2" diameter
    • For 2 bolt lower outlet on Lakes Headers
    • Reusable triple-layer gasket
    • Stainless steel with a heat-resistant, rubber-based inner core
    • 0.085” thick, ultra pliable
    • Available for many popular flange configurations
    • Easily conforms to surface irregularities to create a tight, leak-proof seal
    • Works well with a wide range of flange surfaces and block and head materials
    • Sold as a pair
  • Extreme Exhaust Gaskets, Big Block Chevy, 1-7/8 Inch Round Port
    Extreme Exhaust Gaskets, Big Block Chevy, 1-7/8 Inch Round Port
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    • Reusable triple-layer exhaust gasket
    • Stainless steel with a heat-resistant, rubber-based inner core
    • 0.085” thick, ultra pliable
    • Available for many popular flange configurations
    • Easily conforms to surface irregularities to create a tight, leak-proof seal
    • Works well with a wide range of flange surfaces and block and head materials
  • Super Seal Small Block Chevy D-Port Exhaust Gaskets
    Super Seal Small Block Chevy D-Port Exhaust Gaskets
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    Super Seal offers premium quality components & materials and exceeds all sealing requirements established by gasket manufacturers.

    For "D" port heads.

  • Speedway Chevy 283-400 Oval Port Header Exhaust Gasket
    Speedway Chevy 283-400 Oval Port Header Exhaust Gasket
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    This Speedway S/B Chevy 283-400 exhaust gasket fits standard oval port heads as well as D-Port heads such as those found on the GM ZZ4 crate engine (Fast Burn heads).

    Ports measure 1-3/8" wide x 1-5/8" tall.

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