

Specifications
- Brand
- Cometic Gasket
- Part #
- C5751-140
- UPC
- 191070139049

Cometic GM LS1 SB 4.060 inch Bore .140 inch MLS Head Gasket
$241.38
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Cometic GM LS1 SB 4.060 inch Bore .140 inch MLS Head Gasket. Built with multiple stainless steel layers and Viton coating for high-output engines.
Key Features
- Fits 1997-2015 Chevrolet Corvette, 2004-2007 Cadillac CTS, 1999-2013 Chevrolet Silverado 1500, and many other GM LS Gen-3/4 V8 vehicles.
- Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
- Outer layers are coated with Viton, a heat-resistant elastomer rated up to 482°F.
- Designed for a 4.060 inch bore size.
- Compressed operating thickness is 0.140 inches.
- Suitable for sealing aluminum heads to aluminum blocks or aluminum heads to cast iron blocks.
⚠️ 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
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 LS Gen-3 and Gen-4 small block V8 engines, fitting a wide range of vehicles like the Chevrolet Corvette, Cadillac CTS, and Chevrolet Silverado 1500. This gasket is crucial for maintaining proper compression and preventing leaks between your cylinder head and engine block, especially in high-output applications.
This gasket is constructed from multiple layers of stainless steel, which gives it increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F and works well with different block and head materials, including aluminum to aluminum or aluminum to cast iron. The compressed thickness is 0.140 inches, and it's made for a 4.060-inch bore, ensuring a precise fit for the intended engine configurations. Because it's an MLS gasket, it doesn't require any additional sealants.
Specifications
- Brand
- Cometic Gasket
- Manufacturer Part #
- C5751-140
- UPC
- 191070139049
Frequently Asked Questions
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Cometic GM LS1 SB 4.060 inch Bore .140 inch MLS Head Gasket

