

Specifications
- Brand
- Cometic Gasket
- Part #
- C5318-030
- UPC
- 191070124045

Cometic GM LS1 SB 4.160 inch Bore .030 inch MLS Head Gasket
$90.06
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Cometic MLS head gasket for GM LS engines. Features Viton coating and a 4.160" bore for improved sealing. Part# C5318-030.
Key Features
- Fits a wide range of GM LS Gen-3/4 small block V8 engines.
- Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
- Features a 4.160 inch bore and a 0.030 inch compressed operating thickness.
- Embossed outer layers are coated with heat-resistant Viton for reliable sealing.
- Viton coating can withstand temperatures up to 482°F (250°C).
- Suitable for both aluminum-to-aluminum and aluminum-to-cast iron head and block combinations.
⚠️ 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 Gasket is a well-known name for building solid engine components, and this Multi-Layer Steel (MLS) head gasket is a prime example. Designed for GM LS Gen-3/4 small block V8 engines, this gasket is built to handle the demands of high-output applications. It features a 4.160 inch bore and a compressed operating thickness of 0.030 inches, making it suitable for a wide range of builds and engine configurations.
What sets this gasket apart is its construction. It's made from multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are embossed and coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F (250°C). This Viton coating ensures a reliable seal even in harsh conditions and across different surface finishes, and it means you don't need any extra sealants during installation. The center layer is also stainless steel, allowing for precise thickness control to match your engine's needs.
This gasket fits a broad spectrum of vehicles, including models like the Chevrolet Corvette, Cadillac CTS, and Buick LaCrosse. Its robust construction makes it a solid option whether you're working with aluminum heads on aluminum blocks or aluminum heads on cast iron blocks, as it can withstand the shearing forces between different metals.
Specifications
- Brand
- Cometic Gasket
- Manufacturer Part #
- C5318-030
- UPC
- 191070124045
Frequently Asked Questions
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Cometic GM LS1 SB 4.160 inch Bore .030 inch MLS Head Gasket


