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Cometic H1631SPK051S MLS Cylinder Head Gasket Bore Thick - 100mm 051

Manufacturer

Part Number

H1631SPK051S
Sale Price

$46.07

In Stock (6)

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Usually delivered within 2 days

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No Hassle Returns

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Fitment guaranteed

Product Details

The Cometic H1631SPK051S is a Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Subaru EJ22E, EJ22T, and EJ25D hybrid DOHC 16V engines with a 100mm bore diameter. This high-performance gasket features a compressed thickness of .051 inches, making it ideal for applications requiring precise piston-to-head clearance or modest compression reduction.

Advanced MLS Construction:

  • Multi-layer stainless steel design with embossed outer layers for superior sealing
  • Viton (FKM) rubber coating bonded to outer layers for high-temperature and chemical resistance
  • PTFE topcoat provides enhanced resistance to fretting and improved cold sealing
  • Variable center layer allows for precise thickness control
  • Load-controlled embossments distribute clamping force evenly across the sealing surface

Key Features:

  • 100mm (3.937") bore diameter engineered for Subaru EJ series engines
  • .051" compressed thickness for optimal sealing and clearance
  • No re-torque required after initial installation
  • Install dry - factory-coated with .001" Viton sealant, no additional gasket sealer needed
  • Requires smooth, flat deck and head surfaces with 50 RA finish or finer
  • Excellent performance in high-boost turbocharged applications

Cometic MLS head gaskets are trusted by professional engine builders and proven in demanding racing environments. This gasket provides exceptional sealing with reduced bore distortion compared to conventional head gaskets, making it an excellent choice for both stock rebuilds and high-performance applications.

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