What is the main benefit of the HP shim technology?

The HP shim technology increases the clamping force around the combustion chamber. This helps to create a stronger seal, especially important for open deck blocks.

What does the Viton coating do?

The Viton coating on both sides of the gasket helps improve its sealing capabilities. Viton is known for its resistance to heat and oil, contributing to a more reliable seal against the cylinder head and block.

Does this gasket come with any hardware?

This product is for the cylinder head gasket only. Installation hardware, such as head bolts or studs, is typically sold separately and should be sourced according to manufacturer specifications.

1 / 2

Specifications

Brand: Cometic Gasket
Part #: C15520-066
UPC: 191070522094

Cometic GM LT1/LT4 Gen-II SB V8 .066in MLS Cyl Head Gasket-4.060in Bore-w/ Valve Pocketed Bores

Name: Cometic GM LT1/LT4 Gen-II SB V8 .066in MLS Cyl Head Gasket-4.060in Bore-w/ Valve Pocketed Bores
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-lt1-lt4-gen-ii-sb-v8-066in-mls-cyl-head-gasket-4-060in-t14-803342
Price: 131.62 USD
Availability: BackOrder

$131.62

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 LT1/LT4 Gen-II SB V8 head gasket. .066in thick with 4.060in bore and valve pocketed bores for a strong seal.

Key Features

Fits 1992-1996 Chevrolet Corvette, 1993-1996 Chevrolet Camaro, and 1993-1996 Pontiac Firebird, among other GM V8 applications.
Multi-Layer Steel (MLS) construction for durability and a strong seal.
Features valve pocketed bores to help maintain sealability around valve reliefs.
HP shim technology increases clamping load around the combustion chamber.
Coated on both sides with Viton for improved sealing and resistance to engine fluids.
Designed for a 4.060 inch bore size.

⚠️ 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 LT1 or LT4 Gen-II Small Block V8, getting the right cylinder head gasket is crucial for a solid seal. This Cometic MLS (Multi-Layer Steel) head gasket is built for engines with a 4.060 inch bore and features valve pocketed bores, which helps maintain sealing integrity around the valve reliefs.

Cometic uses their HP shim technology in this gasket, which increases the clamping force around the combustion chamber. This is especially helpful for open deck blocks, ensuring a better seal under pressure. The gasket is coated on both sides with Viton, a material known for its resistance to heat and oil, helping to create a reliable seal against the cylinder head and block surfaces.

This gasket is designed to fit a range of GM vehicles from the early to mid-90s, including popular models like the Chevrolet Camaro, Corvette, and Pontiac Firebird. Make sure to check the fitment data to confirm it's the right choice for your specific application.