HKS 2003–2006 Evo 8/9 1.2mm Stopper Head Gasket (86mm Bore 8.5 Cr)

This HKS stopper head gasket is engineered to provide a precise, reliable combustion seal for 2003–2006 Evo 8/9 engines, matching an 86mm bore and 8.5 Cr specification. At 1.2mm thickness the gasket functions as a direct-replacement sealing component designed to maintain compression and combustion integrity for tuned or stock setups that specify these dimensions. Use this gasket when rebuilding or upgrading the Evo 8/9 top end to ensure correct bore fitment and specified compression ratio compatibility.

Features:

• Thickness 1.2mm stopper head gasket
• Bore size 86mm compatibility note
• Compression ratio supports 8.5 Cr
• Model fitment Evo 8/9 2003–2006
• HKS stopper design prevents vertical movement

Vehicle Fitment:

• 2003–2006 Evo 8/9