Wiseco W6598 Sport Compact MLS Cylinder Head Gasket 89mm .030in Honda F20C F22C

The Wiseco W6598 is a Sport Compact Multi-Layer Steel (MLS) cylinder head gasket engineered for high-performance Honda F-series engines. With an 89mm bore diameter and 0.030-inch compressed thickness, this three-layer gasket is purpose-built to handle the extreme demands of modified and power-adder applications.

Key Features:

• Multi-Layer Steel (MLS) construction — 3-layer high-pressure steel laminate design engineered to withstand the severe shear forces generated between an aluminum cylinder head and iron block
• Internal embossments — Expand under heat to form a progressively tighter seal as combustion pressures and temperatures rise, ideal for turbocharged, supercharged, and nitrous-fed builds
• 89mm bore diameter — Precision-matched for Honda F20C, F20C1, F20C2, and F22C1 engine families
• 0.030-inch (0.76mm) compressed thickness — Allows fine-tuning of compression ratio when used alongside custom piston and deck clearance combinations
• OEM-style sealing surfaces — Engineered to meet and exceed original equipment sealing performance in high-stress race and street applications

The Wiseco W6598 MLS head gasket is an essential upgrade for any serious Honda F-series build requiring a reliable, high-integrity seal under elevated boost pressures and temperatures.