Wiseco W6357 MLS Head Gasket Suzuki GSX-R1300 Hayabusa Overbore 85mm

The Wiseco W6357 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered for overbore applications on the Suzuki GSX-R1300 and GSX-R1340 Hayabusa. Designed to handle the extreme combustion pressures and temperatures generated by high-performance and big-bore engine builds, this gasket delivers a reliable, leak-free seal that meets and exceeds OEM specifications.

Key Features:

• MLS (Multi-Layer Steel) construction — high-pressure steel-laminate design withstands extreme shear forces between the cylinder head and engine block
• Bore range: 85.00mm – 85.50mm — purpose-built for overbore and big-bore piston applications
• Internal embossments that expand with heat to maintain a superior seal under high combustion pressures and temperatures
• Exceeds OEM sealing standards — ideal for power-adder and performance-modified engines
• Compatible with Gen 1 and Gen 2 Suzuki GSX-R1300 / GSX-R1340 Hayabusa (1999–2025)
• Pairs seamlessly with Wiseco overbore piston kits for a complete top-end build

Whether you're completing a full engine rebuild or upgrading to a big-bore kit, the Wiseco W6357 MLS head gasket provides the sealing integrity needed to keep your Hayabusa performing at its peak. Manufactured by Wiseco — a trusted name in high-performance powersports engine components for over 70 years.