Skunk2 366-05-4700 MLS Head Gasket 87.00 mm / 0.85 mm Thick for Honda/Acura K20C

Vehicle Fitment

• Honda/Acura K-series 2.0 L (K20C1) engine - maximum bore 87.00 mm (3.425")

Features

• Multiple-Layer Steel (MLS) gasket construction for enhanced sealing and durability
• Laser-welded steel layers with HR-180 fluoroelastomer synthetic rubber coating to resist heat, vibration and corrosion
• Optimised for maximum bore size of 87.00 mm (3.425") and thickness of approximately 0.85 mm (~0.033") to retain proper head clearance and compression ratio
• Excellent flange conformability for superior sealing on prepped or machined cylinder heads, especially performance-built blocks
• Designed for high-output, high-RPM and high-boost performance builds on K20C1 engines
• Heat-resistant design rated up to ~250 °C / 482 °F for demanding conditions
• Direct replacement gasket for K20C1 builds when bore size and head conditions match specifications

Specifications

• Maximum bore size: 87.00 mm / 3.425"
• Thickness: approx. 0.85 mm (~0.033")
• Construction: MLS (Multiple Layer Steel) with HR-180 rubber coating
• Heat resistance rating: up to ~250 °C / 482 °F

Included Components

• 1x MLS Head Gasket (Part # 366-05-4700) for one full head on K-series engine

Product Description

The Skunk2 366-05-4700 MLS Head Gasket is engineered for high-performance Honda/Acura K-series VTEC engines, specifically the K20C1 platform. With its robust multiple-layer steel construction, laser-welded layers and HR-180 fluoroelastomer coating, this gasket delivers premium sealing reliability even under high engine output, high RPM and boost conditions.

Optimised for a bore size up to 87.00 mm and a gasket thickness of around 0.85 mm, it's ideal for performance builds that demand head clearances be maintained while supporting better compression and sealing. Whether you're building a turbocharged, naturally aspirated or high-rev motor on the K20C1 engine, this gasket provides a strong upgrade path.

Before installation, verify your cylinder block and head meet surface finish and flatness specifications, confirm your bore size does not exceed 87.00 mm, and ensure all associated hardware (head bolts, surfaces) are upgraded or within spec. This listing reflects fitment for K20C1 engines based on available data; for years beyond or other engine families compatibility is unconfirmed at time of listing.