Cometic C9985 66-84 Harley-Davidson Shovelhead .040 MLS Head Gasket 2-Pack

SKU: CGSC9985
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Cometic C9985 .040" MLS Head Gasket 2-Pack for Harley-Davidson Shovelhead (1966-1984)

Equip your classic Harley-Davidson Shovelhead (1966-1984) with the superior sealing power of the Cometic C9985 Head Gasket 2-Pack. Featuring a .040" Multi-Layer Steel (MLS) construction, these gaskets are engineered to withstand the high pressures and temperatures characteristic of V-twin engines, ensuring maximum performance and reliability. Cometic Gasket is renowned for its commitment to quality and innovation in engine sealing solutions.

Superior Sealing for Classic V-Twins:

  • MLS Technology: Multi-Layer Steel construction provides exceptional strength, durability, and resistance to combustion pressures and heat, offering a more reliable seal than traditional materials.
  • Optimized Thickness: The .040" thickness is ideal for performance tuning and maintaining proper compression ratios in Shovelhead engines.
  • Vintage Application: Designed specifically for Harley-Davidson Shovelhead models from 1966 to 1984, ensuring a precise fit for various configurations.
  • USA Manufactured: Crafted with pride in the USA using premium materials, guaranteeing top-tier quality and longevity for your classic motorcycle.
  • Convenient 2-Pack: This package includes two head gaskets, providing a complete solution for twin-cylinder engines.

Maintain the integrity and performance of your iconic Shovelhead with gaskets built to endure. Cometic's dedication to manufacturing excellence ensures your engine receives the best possible seal. Enhance your classic Harley's performance and reliability with these high-quality, American-made head gaskets from GGCRACING.

Vehicle Fitment

Years Make Model Trim
1980-1984 Harley-Davidson FLHS Electra Glide Sport Base
1980-1983 Harley-Davidson FLT Tour Glide Base
1982-1984 Harley-Davidson FXRS Low Glide Base
1983-1984 Harley-Davidson FXRT Sport Glide Base
1977-1982 Harley-Davidson FXS Low Rider Base
1983-1984 Harley-Davidson FXSB Low Rider - Belt Base
1980-1984 Harley-Davidson FXWG Wide Glide Base

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Cometic C9985 .040" MLS Head Gasket 2-Pack for Harley-Davidson Shovelhead (1966-1984)

Equip your classic Harley-Davidson Shovelhead (1966-1984) with the superior sealing power of the Cometic C9985 Head Gasket 2-Pack. Featuring a .040" Multi-Layer Steel (MLS) construction, these gaskets are engineered to withstand the high pressures and temperatures characteristic of V-twin engines, ensuring maximum performance and reliability. Cometic Gasket is renowned for its commitment to quality and innovation in engine sealing solutions.

Superior Sealing for Classic V-Twins:

  • MLS Technology: Multi-Layer Steel construction provides exceptional strength, durability, and resistance to combustion pressures and heat, offering a more reliable seal than traditional materials.
  • Optimized Thickness: The .040" thickness is ideal for performance tuning and maintaining proper compression ratios in Shovelhead engines.
  • Vintage Application: Designed specifically for Harley-Davidson Shovelhead models from 1966 to 1984, ensuring a precise fit for various configurations.
  • USA Manufactured: Crafted with pride in the USA using premium materials, guaranteeing top-tier quality and longevity for your classic motorcycle.
  • Convenient 2-Pack: This package includes two head gaskets, providing a complete solution for twin-cylinder engines.

Maintain the integrity and performance of your iconic Shovelhead with gaskets built to endure. Cometic's dedication to manufacturing excellence ensures your engine receives the best possible seal. Enhance your classic Harley's performance and reliability with these high-quality, American-made head gaskets from GGCRACING.

Vehicle Fitment

Years Make Model Trim
1980-1984 Harley-Davidson FLHS Electra Glide Sport Base
1980-1983 Harley-Davidson FLT Tour Glide Base
1982-1984 Harley-Davidson FXRS Low Glide Base
1983-1984 Harley-Davidson FXRT Sport Glide Base
1977-1982 Harley-Davidson FXS Low Rider Base
1983-1984 Harley-Davidson FXSB Low Rider - Belt Base
1980-1984 Harley-Davidson FXWG Wide Glide Base

Product Details

Product Description

About Cometic Gasket

Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.

Cometic C9985 .040" MLS Head Gasket 2-Pack for Harley-Davidson Shovelhead (1966-1984)

Equip your classic Harley-Davidson Shovelhead (1966-1984) with the superior sealing power of the Cometic C9985 Head Gasket 2-Pack. Featuring a .040" Multi-Layer Steel (MLS) construction, these gaskets are engineered to withstand the high pressures and temperatures characteristic of V-twin engines, ensuring maximum performance and reliability. Cometic Gasket is renowned for its commitment to quality and innovation in engine sealing solutions.

Superior Sealing for Classic V-Twins:

  • MLS Technology: Multi-Layer Steel construction provides exceptional strength, durability, and resistance to combustion pressures and heat, offering a more reliable seal than traditional materials.
  • Optimized Thickness: The .040" thickness is ideal for performance tuning and maintaining proper compression ratios in Shovelhead engines.
  • Vintage Application: Designed specifically for Harley-Davidson Shovelhead models from 1966 to 1984, ensuring a precise fit for various configurations.
  • USA Manufactured: Crafted with pride in the USA using premium materials, guaranteeing top-tier quality and longevity for your classic motorcycle.
  • Convenient 2-Pack: This package includes two head gaskets, providing a complete solution for twin-cylinder engines.

Maintain the integrity and performance of your iconic Shovelhead with gaskets built to endure. Cometic's dedication to manufacturing excellence ensures your engine receives the best possible seal. Enhance your classic Harley's performance and reliability with these high-quality, American-made head gaskets from GGCRACING.

Vehicle Fitment

Years Make Model Trim
1980-1984 Harley-Davidson FLHS Electra Glide Sport Base
1980-1983 Harley-Davidson FLT Tour Glide Base
1982-1984 Harley-Davidson FXRS Low Glide Base
1983-1984 Harley-Davidson FXRT Sport Glide Base
1977-1982 Harley-Davidson FXS Low Rider Base
1983-1984 Harley-Davidson FXSB Low Rider - Belt Base
1980-1984 Harley-Davidson FXWG Wide Glide Base

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