What does the .040in thickness signify for this head gasket?

The .040 inch thickness refers to the gasket's compressed height. This measurement is important for achieving the correct compression ratio in your engine rebuild. It's a common size for many GM Big Block V8 applications.

What is the advantage of MLX gasket construction?

MLX stands for Multi-Layer Steel. This type of construction uses multiple layers of steel to create a strong and durable gasket that can handle the high pressures and temperatures found in performance V8 engines. It offers improved sealing compared to older gasket materials.

Does this head gasket come with any installation hardware?

This product is for the cylinder head gasket only. It does not include head bolts or other installation hardware. You will need to source those separately if they are not being replaced as part of your engine rebuild.

Specifications

Brand: Cometic Gasket
Part #: C15656-040
UPC: 191070577766

Cometic GM Gen-V/VI Big Block V8 .040in MLX Cylinder Head Gasket - 4.560in Bore

Name: Cometic GM Gen-V/VI Big Block V8 .040in MLX Cylinder Head Gasket - 4.560in Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-gen-v-vi-big-block-v8-040in-mlx-cylinder-head-gasket-4-t14-806573
Price: 159.67 USD
Availability: BackOrder

$159.67

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 MLX head gasket, .040in thick with 4.560in bore. A well-built replacement for your V8 engine.

Key Features

Fits 1991-1997 Chevrolet and GMC trucks and vans with GM Gen-V/VI Big Block V8 engines.
Features a .040 inch thickness for proper compression.
Has a 4.560 inch bore diameter.
Constructed from multi-layer steel for reliable sealing.
Designed as a direct replacement for the original head gasket.

⚠️ 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

If you're rebuilding the top end of your GM Gen-V or Gen-VI Big Block V8, this Cometic MLX cylinder head gasket is a solid option. It's designed with a .040 inch thickness and a 4.560 inch bore, specifically made to seal the combustion chamber and coolant passages on a range of Chevrolet and GMC trucks from the early to mid-90s, like the C1500, K2500 Suburban, and G30 vans.

Cometic's MLX gaskets are known for their multi-layer steel construction, which offers good sealing performance for these powerful V8 engines. The .040 inch thickness is a common size for many rebuilds, helping to achieve the correct compression ratio. This gasket fits right into place, making the installation process straightforward for a mechanic or a DIYer who's comfortable working on engines.