
Specifications
- Brand
- Cometic Gasket
- Part #
- C5399-066
- UPC
- 191070125721

Cometic Chevrolet Gen-1 Small Block V8 .066in MLS Cylinder Head Gasket - 4.030in Bore
$123.94
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Cometic Chevrolet Gen-1 Small Block V8 .066in MLS Cylinder Head Gasket - 4.030in Bore. Built with multiple stainless steel layers and Viton coating for a strong seal.
Key Features
- Fits 1980-1986 Chevrolet Gen-1 Small Block V8 engines.
- Multi-layer steel (MLS) construction offers increased strength and corrosion resistance.
- Outer layers are embossed and coated with heat-resistant Viton rubber up to 482°F.
- Designed for a 4.030-inch bore.
- Features undersized water ports for customization with aftermarket cylinder heads.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
Cometic builds this Multi-Layer Steel (MLS) head gasket with three to five layers of stainless steel, chosen for its strength and resistance to corrosion. The outer layers are embossed and coated on both sides with a Viton rubber material, which can handle temperatures up to 482°F and works well in tough sealing environments and under various load conditions.
This gasket is specifically designed for Chevrolet Gen-1 Small Block V8 engines with a 4.030-inch bore. It's intended for use with aftermarket cylinder heads, featuring undersized water ports that allow for customization to match your specific setup. This approach helps ensure a precise seal and proper coolant flow management.
This gasket fits a wide range of vehicles, including models like the Chevrolet Camaro, GMC C1500, and Buick Century from the early 1980s. It's a well-built component for rebuilding or upgrading your Gen-1 Small Block V8 engine.
Specifications
- Brand
- Cometic Gasket
- Manufacturer Part #
- C5399-066
- UPC
- 191070125721
Frequently Asked Questions
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Cometic Chevrolet Gen-1 Small Block V8 .066in MLS Cylinder Head Gasket - 4.030in Bore

