What is the purpose of the HP shim technology in this gasket?

The HP shim technology increases the clampload around the combustion chamber. This helps to create a stronger seal, which is particularly beneficial for open deck engine blocks.

What is the benefit of the Viton coating on this head gasket?

The Viton coating on both sides of the gasket offers improved resistance to heat and chemicals. This helps maintain a reliable seal even under demanding engine conditions.

Does this gasket come with any hardware?

This product includes the head gasket itself. It is recommended to consult the manufacturer's installation instructions or a service manual for any additional hardware or specific installation requirements.

Specifications

Brand: Cometic Gasket
Part #: C5319-066
UPC: 191070124151

Cometic GM LS1 SB 4.190in Bore .066in MLS Head Gasket

Name: Cometic GM LS1 SB 4.190in Bore .066in MLS Head Gasket
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-ls1-sb-4-190in-bore-066in-mls-head-gasket-t14-481093
Price: 102.25 USD
Availability: BackOrder

$102.25

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Cometic GM LS1 SB MLS head gasket with 4.190in bore and .066in thickness. Features HP shim technology for improved sealing.

Key Features

Fits many GM LS Gen-3/4 Small Block V8 engines.
Features a 4.190 inch bore and .066 inch thickness.
Multi-Layer Steel (MLS) construction for durability.
HP shim technology increases clampload for improved sealing, especially on open deck blocks.
Coated on both sides with Viton for enhanced sealing and resistance to heat and chemicals.

⚠️ 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

No-fit, no charge. Wrong part? Send it back, free return label.

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About this part

Product Details

This Cometic Multi-Layer Steel (MLS) head gasket is built with a .066 inch thickness and a 4.190 inch bore, making it a solid choice for GM LS Gen-3 and Gen-4 small block V8 engines. The HP shim technology integrated into its design is key to increasing the clampload around the combustion chamber. This is especially important for open deck blocks, as it helps ensure a strong seal where it matters most.

You'll also find that both sides of this gasket are coated with Viton, a high-performance fluoroelastomer known for its resistance to heat and chemicals. This coating further enhances the gasket's ability to maintain a seal under demanding conditions. This gasket fits a wide range of vehicles, including models like the Chevrolet Camaro, Corvette, and Silverado, among many others.