Cometic Gasket MLS Head Gasket 4.200 Bore .040 — Fits Small Block Chevy

SKU: BJNS_H1076SPK040XP
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About Cometic Gasket Automotive Cometic Gasket Automotive engineers high-quality automotive ...Read More

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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 Automotive

Cometic Gasket Automotive engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Cometic Gasket Automotive lineup with fast shipping and expert fitment support — order with confidence.

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Cometic MLS Head Gasket for Small Block Chevy

Maximize your engine's reliability with the Cometic Multi-Layer Steel (MLS) Head Gasket. Designed for Small Block Chevy (SBC) applications with a 4.200-inch bore, this gasket features a .040-inch compressed thickness, making it the ideal choice for builders looking to optimize quench and compression ratios. Cometic's advanced MLS technology provides a robust seal that withstands the extreme cylinder pressures found in high-performance and racing engines.

Technical Specifications

  • Bore Size: 4.200 inches
  • Compressed Thickness: 0.040 inches
  • Material: Multi-Layer Steel (MLS)
  • Application: Small Block Chevy (SBC)
  • Superior thermal expansion management

Unlike traditional composite gaskets, the Cometic MLS design utilizes stainless steel layers that are embossed and coated with a high-temperature polymer. This construction ensures a consistent seal even as the cylinder head and block expand and contract at different rates. Whether you are building a street-strip machine or a dedicated drag car, this head gasket provides the peace of mind needed for high-horsepower applications. Enhance your engine's durability with premium components from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Cometic Gasket Automotive

Cometic Gasket Automotive engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Cometic Gasket Automotive lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Cometic MLS Head Gasket for Small Block Chevy

Maximize your engine's reliability with the Cometic Multi-Layer Steel (MLS) Head Gasket. Designed for Small Block Chevy (SBC) applications with a 4.200-inch bore, this gasket features a .040-inch compressed thickness, making it the ideal choice for builders looking to optimize quench and compression ratios. Cometic's advanced MLS technology provides a robust seal that withstands the extreme cylinder pressures found in high-performance and racing engines.

Technical Specifications

  • Bore Size: 4.200 inches
  • Compressed Thickness: 0.040 inches
  • Material: Multi-Layer Steel (MLS)
  • Application: Small Block Chevy (SBC)
  • Superior thermal expansion management

Unlike traditional composite gaskets, the Cometic MLS design utilizes stainless steel layers that are embossed and coated with a high-temperature polymer. This construction ensures a consistent seal even as the cylinder head and block expand and contract at different rates. Whether you are building a street-strip machine or a dedicated drag car, this head gasket provides the peace of mind needed for high-horsepower applications. Enhance your engine's durability with premium components from GGCRACING.

Product Details

Product Description

About Cometic Gasket Automotive

Cometic Gasket Automotive engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Cometic Gasket Automotive lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Cometic MLS Head Gasket for Small Block Chevy

Maximize your engine's reliability with the Cometic Multi-Layer Steel (MLS) Head Gasket. Designed for Small Block Chevy (SBC) applications with a 4.200-inch bore, this gasket features a .040-inch compressed thickness, making it the ideal choice for builders looking to optimize quench and compression ratios. Cometic's advanced MLS technology provides a robust seal that withstands the extreme cylinder pressures found in high-performance and racing engines.

Technical Specifications

  • Bore Size: 4.200 inches
  • Compressed Thickness: 0.040 inches
  • Material: Multi-Layer Steel (MLS)
  • Application: Small Block Chevy (SBC)
  • Superior thermal expansion management

Unlike traditional composite gaskets, the Cometic MLS design utilizes stainless steel layers that are embossed and coated with a high-temperature polymer. This construction ensures a consistent seal even as the cylinder head and block expand and contract at different rates. Whether you are building a street-strip machine or a dedicated drag car, this head gasket provides the peace of mind needed for high-horsepower applications. Enhance your engine's durability with premium components from GGCRACING.

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