Cometic H1340SP1066S MLS Head Gasket Honda B18C VTEC 84.5mm .065 Inch

The Cometic H1340SP1066S is a high-performance Multi-Layer Steel (MLS) head gasket specifically engineered for Honda B18C VTEC engines with an 84.5mm bore and .065 inch compressed thickness. This precision-manufactured gasket provides exceptional sealing under extreme pressure and temperature conditions.

Construction and Materials:

• Multi-layer steel construction with embossed viton-coated stainless steel outer layers
• Variable stainless steel center layer allows for precise thickness options
• Viton rubber coating bonded to outer layers provides superior chemical and heat resistance
• Load-controlled embossments distribute clamping pressure evenly across the sealing surface
• Corrosion-resistant stainless steel construction for extended service life

Key Features:

• 84.5mm bore diameter designed for Honda B18C VTEC applications
• .065 inch (1.65mm) compressed thickness
• Requires no additional sealants when properly installed on prepared surfaces
• No re-torque required after initial installation
• Reduces bore distortion through controlled embossment design
• Withstands extreme shearing forces between dissimilar materials

Installation Requirements:

• Surfaces must be smooth, flat and true for proper sealing
• Recommended surface finish of 50 RA (roughness average) or finer
• Not compatible with O-ring or receiver groove setups
• Install dry - gasket comes pre-coated with sealant
• Follow fastener manufacturer torque specifications

This MLS head gasket is designed for serious performance applications where reliability and durability are critical. The advanced multi-layer construction provides superior rebound characteristics and can handle the demands of high-compression, high-boost, and high-temperature engine environments.