

Specifications
- Brand
- Cometic Gasket
- Part #
- C5646-051
- UPC
- 191070068219

Cometic 92-96 GM LT1 Small Block 4.100 inch Bore .051 inch MLS Head Gasket (w/Valve Pockets)
$94.57
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Cometic C5646-051 MLS head gasket for GM LT1/LT4 engines. Features Viton coating for excellent sealing.
Key Features
- Fits 1992-1996 Chevrolet Corvette, 1993-1996 Chevrolet Camaro, and 1993-1996 Pontiac Firebird, among other GM vehicles.
- Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
- Outer layers are embossed and coated with Viton, a heat-resistant rubber material rated up to 482°F.
- Compressed operating thickness is .051 inches.
- Features a 4.100 inch bore size.
- Designed for GM LT1/LT4 Gen-2 Small Block V8 engines.
⚠️ 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
This Cometic Multi-Layer Steel (MLS) head gasket is built with multiple embossed layers of stainless steel, featuring a Viton rubber coating on the outer layers. With a compressed operating thickness of .051 inches and a 4.100 inch bore, it's designed to provide maximum sealing performance for high-output GM LT1 and LT4 Gen-2 Small Block V8 engines. These gaskets are well-suited for applications using aluminum heads with either aluminum or cast iron blocks, as they can handle the shearing forces that arise from dissimilar materials. The stainless steel construction offers increased strength and resistance to corrosion, while the Viton coating, which is heat resistant up to 482°F, ensures reliable sealing in demanding conditions.
Cometic MLS head gaskets require no additional sealants, simplifying installation. The center shim layer is uncoated stainless steel and can be varied to achieve different thickness requirements, though this specific gasket is set at .051 inches compressed. This gasket fits a range of vehicles including the Chevrolet Camaro, Corvette, and Pontiac Firebird from the mid-90s.
Specifications
- Brand
- Cometic Gasket
- Manufacturer Part #
- C5646-051
- UPC
- 191070068219
Frequently Asked Questions
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Cometic 92-96 GM LT1 Small Block 4.100 inch Bore .051 inch MLS Head Gasket (w/Valve Pockets)

