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HKS 03-06 Evo 8/9 1.2mm Stopper head gasket (86mm bore 8.5 cr)

$330.00

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HKS 03-06 Evo 8/9 1.2mm Stopper head gasket (86mm bore 8.5 cr)

$330.00

$330.00

Fits 2003-2006 Mitsubishi Lancer Evolution 8 and 9 (4G63).

The HKS Stopper Head Gasket is engineered for high-output applications where maintaining a reliable cylinder head seal is critical. This multi-layer steel (MLS) gasket features a specialized stopper design, incorporating a folded-over layer around the combustion chamber to create a high-pressure seal. This construction effectively prevents combustion gas leakage and head gasket failure in turbocharged engines running high boost levels.

Designed for precision fitment, this gasket accommodates an 86mm bore, making it suitable for engines with a slight overbore. The 1.2mm thickness allows for specific tuning of the compression ratio and quench height, providing the durability needed for competitive track use or high-performance street builds.

  • Manufacturer Part Number: 23001-AM004
  • Bore Diameter: 86mm
  • Thickness: 1.2mm
  • Construction: Multi-Layer Steel (MLS) with Stopper Ring
  • Compatibility: 2003-2006 Mitsubishi Evo 8/9
  • Compression Ratio Note: Configured for 8.5 CR builds

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