

Specifications
- Brand
- Cometic Gasket
- Part #
- C5716-066

Cometic Cadillac L37/LD8 Northstar V8 .066in MLS Cylinder 94mm Bore RHS Head Gasket
$155.70
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Cometic Right Hand Side head gasket for Cadillac L37/LD8 Northstar V8 engines. Features a multi-layer steel design for improved sealing.
Key Features
- Fits a range of Cadillac L37/LD8 Northstar V8 engines, including Buick Lucerne, Cadillac DeVille, Eldorado, Seville, and Pontiac Bonneville.
- Right Hand Side head gasket with a 94mm bore and a compressed operating thickness of 0.066 inches.
- Multi-layer steel (MLS) construction offers increased strength and resistance to corrosion.
- Outer layers are embossed and coated with Viton, a heat-resistant elastomer rated up to 482°F (250°C).
- Designed for use with aluminum heads on aluminum or cast iron blocks, handling shearing forces between materials.
- No sealants required for installation, making for a straightforward process.
⚠️ 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
If you're working on a Cadillac L37 or LD8 Northstar V8 engine, this Cometic Right Hand Side head gasket is a solid option for your rebuild. It's built with a multi-layer steel (MLS) design, which is ideal for keeping things sealed up tight, especially with aluminum heads on either aluminum or cast iron blocks. This construction helps it handle the stresses that can occur between different metals.
The gasket has a compressed thickness of 0.066 inches and a 94mm bore, designed to meet the demands of these V8 engines. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit, ensuring a reliable seal even under tough conditions. Because it's an MLS gasket, you won't need to add any extra sealants; it's ready to go right out of the box. This gasket fits a range of Cadillac models like the DeVille, Eldorado, and Seville, as well as some Buick Lucerne and Pontiac Bonneville applications.
Specifications
- Brand
- Cometic Gasket
- Manufacturer Part #
- C5716-066
Frequently Asked Questions
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Cometic Cadillac L37/LD8 Northstar V8 .066in MLS Cylinder 94mm Bore RHS Head Gasket


