What is the compressed thickness of this head gasket?

The compressed operating thickness of this Cometic head gasket is 0.030 inches. This measurement is critical for ensuring proper compression ratios and valve-to-piston clearance in your engine.

Does this gasket require any additional sealants?

No, this Multi-Layer Steel (MLS) head gasket is designed to provide maximum sealing performance without the need for any additional sealants. The Viton coating on the outer layers ensures a tight seal on its own.

What types of cylinder head and block materials can this gasket be used with?

This gasket is ideal for use with both aluminum heads on aluminum blocks and aluminum heads on cast iron blocks. The multi-layer steel construction and Viton coating are designed to handle the potential shearing forces between dissimilar materials.

Specifications

Brand: Cometic Gasket
Part #: C5334-030
UPC: 191070065812

Cometic GM Gen-V/VI Big Block V8 .030in MLS Cylinder Head Gasket - 4.630in Bore

Name: Cometic GM Gen-V/VI Big Block V8 .030in MLS Cylinder Head Gasket - 4.630in Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-gen-v-vi-big-block-v8-030in-mls-cylinder-head-gasket-4-t14-806634
Price: 108.99 USD
Availability: BackOrder

$108.99

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 Gen-V/VI Big Block V8 .030in MLS Head Gasket - 4.630in Bore. Built with multiple stainless steel layers and Viton coating for maximum sealing.

Key Features

Fits 1991-1997 Chevrolet and GMC trucks and vans with GM Gen-V/VI Big Block V8 engines.
Multi-Layer Steel (MLS) construction provides increased strength and corrosion resistance.
Outer layers are coated with heat-resistant Viton rubber, rated up to 482 F (250 C).
Compressed operating thickness is 0.030 inches.
Bore size is 4.630 inches.
Designed for high-output engines and requires no sealants.

⚠️ 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

Secure CheckoutFast Shipping631-982-0042

Will it fit your car?

About this part

Product Details

Cometic Gasket is known for making well-built sealing components, and this Multi-Layer Steel (MLS) head gasket is a prime example. It's designed for GM Gen-V/VI Big Block V8 engines and features a 4.630-inch bore with a compressed thickness of 0.030 inches. This gasket is built to handle the demands of high-output engines, ensuring a solid seal between your cylinder heads and block.

This MLS gasket is constructed from multiple layers of stainless steel, which gives it increased strength and the ability to rebound, helping it resist corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit. This coating is designed to work effectively with various sealing environments and surface finishes, making it suitable for both aluminum-to-aluminum and aluminum-to-cast iron block configurations. The center layer is uncoated stainless steel, allowing for precise thickness control.

This gasket fits a wide range of GM trucks and vans from the early 90s, including models like the Chevrolet C1500 and GMC C2500. Because it requires no additional sealants, installation is straightforward, making it a popular choice for engine rebuilds and performance upgrades.