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Fel-Pro PermaTorque Multi-Layer Steel Head Gaskets


Fel-Pro
Fel-Pro PermaTorque Multi-Layer Steel Head Gaskets

Product images may differ from actual product appearance.

Modern Cylinder Heads Require a New Type of Gasket

Why use a Fel-Pro Multi-Layer Steel Cylinder Head Gasket? Because more power per cylinder, higher operating temperatures, and thinner head and block castings demand a modified gasket. MLS Gaskets are stronger, more forgiving, and capable of sealing despite movement between the head and block. Such motion results from: lighter, thinner aluminum head castings that are more susceptible to thermal expansion; computer controls that can dramatically increase engine output; reduced clamping force that prevents stress points and cylinder bore distortion.

MLS Technology was developed to overcome sealing challenges. The number of layers in an MLS Gasket ranges from two to five, depending on the engine's sealing characteristics. Generally, the more layers, the more motion the gasket endures. There are multiple solid layers of heat-treated stainless steel separated by a very thin rubber coating, and the layers are either active (absorbing motion between the head and block) or shim (giving the gasket its correct compressed thickness). Gaskets are sold each.

Features
  • Stainless steel maintains shape
  • Survives higher combustion pressure
  • Withstands "scrubbing" between head and block
  • Functions at a wider range of operating temperatures
  • Strategically-placed sealing beads eliminate leak paths
  • "Stopper" layer provides superior primary combustion seal

    Additional Information

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  • 20 Products
    Chevy LS1/LS6

    375-1161L
    PermaTorque MLS Head Gasket
  • Small Block Chevy LS1/LS6 (Left Side)
  • Gasket Bore: 4.100''
  • Compressed Thickness: .053''
  • Compressed Volume: 11.5cc
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  • $101.99
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    375-1161R
    PermaTorque MLS Head Gasket
  • Small Block Chevy LS1/LS6 (Right Side)
  • Gasket Bore: 4.100''
  • Compressed Thickness: .053''
  • Compressed Volume: 11.5cc
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  • $101.99
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    375-1162L
    PermaTorque MLS Head Gasket
  • Small Block Chevy LS1/LS6 (Left Side)
  • Gasket Bore: 4.175''
  • Compressed Thickness: .053''
  • Compressed Volume: 11.9cc
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  • $101.99
    Order Today Ships 04/23/14

    375-1162R
    PermaTorque MLS Head Gasket
  • Small Block Chevy LS1/LS6 (Right Side)
  • Gasket Bore: 4.175''
  • Compressed Thickness: .053''
  • Compressed Volume: 11.9cc
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  • $101.99
    Order Today Ships 04/23/14
    Big Block Chevy

    375-1071-1
    PermaTorque MLS Head Gasket
  • Big Block Chevy
  • Gasket Bore: 4.380''
  • Compressed Thickness: .053''
  • Compressed Volume: 13.7cc
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  • $104.99
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    375-1077
    PermaTorque MLS Head Gasket
  • Big Block Chevy
  • Gasket Bore: 4.640''
  • Compressed Thickness: .041''
  • Compressed Volume: 11.4cc
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  • $104.99
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    375-1077-1
    PermaTorque MLS Head Gasket
  • Big Block Chevy
  • Gasket Bore: 4.640''
  • Compressed Thickness: .053''
  • Compressed Volume: 14.8cc
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  • $124.99
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    375-1126
    PermaTorque MLS Head Gasket
  • Chevy DRCE III Big Block (4.900" Bore Centers)
  • Gasket Bore: 4.735''
  • Compressed Thickness: .041''
  • Compressed Volume: 11.8cc
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  • $126.99
    Order Today Ships 04/23/14

    375-11261
    PermaTorque MLS Head Gasket
  • Chevy DRCE III Big Block (4.900" Bore Centers)
  • Gasket Bore: 4.735''
  • Compressed Thickness: .052"
  • Compressed Volume: 14.9cc
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  • $137.99
    Order Today Ships 04/23/14

    375-1128
    PermaTorque MLS Head Gasket
  • Chevy DRCE/DRCE I Big Block (4.900'' Bore Centers)
  • Gasket Bore: 4.750''
  • Compressed Thickness: .041"
  • Compressed Volume: 11.9cc
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  • $126.99
    Order Today Ships 04/23/14

    375-1128-1
    PermaTorque MLS Head Gasket
  • Chevy DRCE/DRCE I Big Block (4.900" Bore Centers)
  • Gasket Bore: 4.735''
  • Compressed Thickness: .052"
  • Compressed Volume: 14.9cc
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  • $152.99
    Order Today Ships 04/23/14

    375-1129
    PermaTorque MLS Head Gasket
  • Chevy DRCE II Big Block (4.900" Bore Centers)
  • Gasket Bore: 4.750''
  • Compressed Thickness: .041"
  • Compressed Volume: 11.9cc
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  • $129.99
    Order Today Ships 04/23/14

    375-11291
    PermaTorque MLS Head Gasket
  • Chevy DRCE II Big Block (4.900" Bore Centers)
  • Gasket Bore: 4.735''
  • Compressed Thickness: .052"
  • Compressed Volume: 14.9cc
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  • $137.99
    Order Today Ships 04/23/14

    375-1197-1
    PermaTorque MLS Head Gasket
  • Chevy DRCE I Big Block (4.900" Bore Centers)
  • Gasket Bore: 4.765''
  • Compressed Thickness: .052"
  • Compressed Volume: 15.5cc
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  • $152.99
    Order Today Ships 04/23/14
    Small Block Ford

    375-1133SD4
    PermaTorque MLS Head Gasket
  • Small Block Ford
  • Gasket Bore: 4.100''
  • Compressed Thickness: .0425"
  • Compressed Volume: 9.2cc
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  • $106.99
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    375-1133SD5
    PermaTorque MLS Head Gasket
  • Small Block Ford
  • Gasket Bore: 4.100''
  • Compressed Thickness: .052"
  • Compressed Volume: 10.8cc
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  • $101.99
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    375-1134SD4
    PermaTorque MLS Head Gasket
  • Small Block Ford
  • Gasket Bore: 4.180''
  • Compressed Thickness: .0425"
  • Compressed Volume: 9.4cc
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  • $106.99
    Order Today Ships 04/23/14

    375-1134SD5
    PermaTorque MLS Head Gasket
  • Small Block Ford
  • Gasket Bore: 4.180''
  • Compressed Thickness: .052"
  • Compressed Volume: 11cc
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  • $116.99
    Order Today Ships 04/23/14

    375-1137SD5
    PermaTorque MLS Head Gasket
  • Small Block Ford
  • Gasket Bore: 4.210''
  • Compressed Thickness: .052"
  • Compressed Volume: 11.9cc
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  • $101.99
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    Ford 4.6L/5.4L

    375-1141-LK
    PermaTorque MLS Head Gasket Kit
  • Ford 4.6L/5.4L
  • Includes Left & Right Head Gaskets and Head Bolts
    More info on Fel-Pro 1141-LK
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  • $163.99
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    20 Products