Fits 2002-2006 Acura RSX and Honda Civic Si (K20A1/A3 engines).

Cometic MLS (Multi-Layer Steel) exhaust manifold gaskets are designed to provide a high-integrity seal for high-performance applications. Engineered to withstand extreme cylinder pressures and thermal cycling, these gaskets utilize embossed outer layers to meet the demands of various surface finishes and load conditions. The stainless steel shim layer allows the gasket to maintain a precise torque set, preventing the gasket from burning through or pushing out under heavy load.

• Manufacturer Part Number: C4160-030
• Port Dimensions: 1.820 inch x 1.540 inch
• Thickness: .030 inch
• Material: Multi-Layer Steel (MLS) with stainless shim core
• Installation: Requires no sealants and provides even load distribution
• Durability: High resistance to corrosion and bore distortion

Fits 2003-2005 Mitsubishi Lancer Evolution, Evolution MR, and Evolution RS (4G63).

The Cometic Multi-Layer Steel (MLS) Head Gasket is engineered for high-output turbocharged engines that demand superior sealing under extreme cylinder pressures. Constructed from multiple layers of embossed stainless steel, this gasket provides the necessary rebound and corrosion resistance to maintain a reliable seal between the cylinder head and engine block, even as thermal expansion causes shearing forces between the components.

The outer layers feature a Viton fluoroelastomer coating that is heat resistant to 250°C (482°F), designed to meet the demands of harsh sealing environments and various surface finishes. By utilizing a stainless shim layer, this gasket ensures precise thickness and requires less clamp load than traditional designs, resulting in reduced bore distortion and uniform load distribution across the sealing area. No additional sealants are required for installation.

• Manufacturer Part Number: C4157-051
• Bore Diameter: 85mm
• Compressed Operating Thickness: 0.051"
• Material: Viton-coated Multi-Layer Stainless Steel (MLS)
• Temperature Resistance: Up to 250°C (482°F)
• Ideal for aluminum-to-cast iron or aluminum-to-aluminum mating surfaces

Fits 2003-2005 Mitsubishi Lancer Evolution (4G63).

Engineered for high-output performance, the Cometic Multi-Layer Steel (MLS) head gasket provides maximum sealing reliability for the Mitsubishi 4G63 engine. This gasket (MPN: C4156-066) features an 86mm bore and a .066-inch compressed thickness. Constructed from multiple layers of embossed stainless steel, it offers superior rebound and corrosion resistance compared to composite alternatives. The multi-layer design is specifically engineered to withstand the shearing forces created by different thermal expansion rates when mating aluminum heads to cast iron blocks.

• Advanced Sealing: Outer layers are embossed and coated on both sides with Viton, a fluoroelastomer rubber material heat resistant to 250°C (482°F).
• Optimized Load: Designed to require less clamp load, which helps minimize bore distortion and ensures even load distribution across the sealing surface.
• Durable Build: Features an uncoated stainless steel center shim layer for precise thickness and increased structural integrity.
• Bore: 86mm
• Compressed Thickness: .066"
• Material: Multi-Layer Stainless Steel (MLS)

Fits 2003-2005 Mitsubishi Lancer Evolution, Evolution MR, and Evolution RS (2.0L 4G63).

The Cometic Multi-Layer Steel (MLS) head gasket is engineered for the high cylinder pressures of modified 4G63 engines. Constructed from multiple layers of embossed stainless steel, this gasket provides superior rebound and corrosion resistance compared to composite alternatives. The outer layers are coated on both sides with Viton, a heat-resistant fluor elastomer rated to 250°C (482°F), ensuring a reliable seal across various surface finishes and load conditions.

This design is ideal for sealing aluminum heads to cast iron blocks, as the stainless steel layers withstand the shearing forces created by different thermal expansion rates. With a compressed operating thickness of 0.060", it requires less clamp load than traditional gaskets, which helps reduce bore distortion and maintains more consistent load distribution across the sealing surface.

• Bore Diameter: 86mm
• Compressed Thickness: 0.060"
• Material: Multi-Layer Steel (MLS)
• Outer Coating: Viton rubber
• Temperature Rating: Up to 250°C / 482°F
• Installation: No sealants required
• Manufacturer Part Number: C4156-060

Fits 2003-2005 Mitsubishi Lancer Evolution, MR, and RS.

The Cometic Multi-Layer Steel (MLS) Head Gasket is engineered to provide the maximum sealing performance required for high-output 4G63 engines. This gasket is constructed from multiple layers of embossed stainless steel, which provides the necessary strength to resist corrosion and the ability to rebound under heavy cylinder pressures. The outer layers are coated on both sides with Viton, a fluoroelastomer rubber based material heat-resistant to 250°C (482°F), ensuring a reliable seal even in harsh conditions.

Designed for compatibility with both aluminum-to-aluminum and aluminum-to-cast iron block and head combinations, this gasket withstands the shearing forces created by different material expansion rates. Its design requires less clamp load, which helps minimize bore distortion and ensures even load distribution across the sealing surface.

• Bore Size: 86mm
• Compressed Thickness: 0.051"
• Material: Multi-Layer Stainless Steel (MLS)
• Coating: Viton rubber coating on embossed outer layers
• Heat Resistance: Up to 250°C (482°F)
• Manufacturer Part Number: C4156-051
• No sealants required for installation

Fits select 1988-1994 Mazda 323, Miata, MX-3, and Mercury Capri (1.6L).

The Cometic Multi-Layer Steel (MLS) Head Gasket provides superior sealing performance for high-output 1.6L engines without the need for additional sealants. Engineered to withstand the extreme shearing forces created between aluminum heads and cast iron blocks, this gasket is constructed from multiple layers of embossed stainless steel for maximum strength and rebound.

Each outer layer is coated on both sides with Viton, a high-performance fluoroelastomer rubber capable of resisting temperatures up to 250°C (482°F). This advanced coating ensures a reliable seal across various surface finishes and load conditions, while the uncoated stainless steel shim layer allows for precise thickness requirements. The MLS design requires less clamp load, which helps minimize bore distortion and promotes even load distribution across the entire sealing area.

• Manufacturer Part Number: C4122-060
• Bore Size: 80mm
• Compressed Thickness: 0.060 inch (1.52mm)
• Material: Multi-Layer Stainless Steel with Viton coating
• Engine Compatibility: Mazda 1.6L (B6D)
• Corrosion Resistant: Yes

Fits 1988-1994 Mazda 323, Miata, MX-3, and Mercury Capri models equipped with the 1.6L (B6) engine.

The Cometic Multi-Layer Steel (MLS) head gasket is engineered to provide the superior sealing required for modern high-output engines. Constructed from multiple layers of embossed stainless steel, this gasket features outer layers coated with a 0.25-micron thick layer of Viton rubber. This fluoroelastomer coating is heat-resistant up to 250°C (482°F), allowing it to maintain a reliable seal across various load conditions and surface finishes without the need for additional sealants.

By design, the MLS construction is ideal for both aluminum-to-aluminum and aluminum-to-cast iron engine configurations. It effectively resists the shearing forces created by different thermal expansion rates between the cylinder head and engine block. The uncoated stainless steel center shim layer provides structural integrity and allows for precise thickness specifications to meet your build requirements.

• Bore Size: 80mm
• Compressed Thickness: 0.051 inch
• Construction: Multi-Layer Steel (MLS)
• Outer Material: Viton-coated embossed stainless steel
• Shim Material: Uncoated stainless steel center layer
• Temperature Resistance: Up to 250°C / 482°F
• Manufacturer Part Number: C4122-051

Vehicle Fitment:

• 1988-1993 Mazda 323 (Base, DX, GT, GTX, LX, SE)
• 1990-1993 Mazda Miata (Base, LE, SE)
• 1992-1993 Mazda MX-3 (Base)
• 1991-1994 Mercury Capri (Base)

Fits select 1988-1994 Mazda 323, Miata, MX-3, and Mercury Capri (1.6L).

The Cometic Multi-Layer Steel (MLS) Head Gasket is engineered to provide the ultimate sealing solution for high-output 1.6L B6-series engines. Built with multiple layers of embossed stainless steel, this gasket is designed to handle the high combustion pressures and shearing forces common in engines featuring aluminum heads mated to cast iron or aluminum blocks. Unlike standard gaskets, the Cometic MLS design requires no additional sealants and resists the corrosive effects of modern fluids.

The outer layers are precision-embossed and coated on both sides with Viton, a high-performance fluoroelastomer capable of withstanding temperatures up to 250°C (482°F). This specialized coating ensures a reliable seal across various surface finishes and load conditions while reducing bore distortion by requiring less clamp load than traditional composite gaskets.

• Manufacturer Part Number: C4122-040
• Bore Size: 80mm
• Compressed Thickness: .040"
• Construction: Multi-Layer Steel (MLS) with stainless steel shim
• Coating: Viton-coated outer layers for heat and chemical resistance
• Compatibility: Ideal for naturally aspirated or forced induction applications

Vehicle Fitment:

• 1988-1993 Mazda 323 (Base, DX, GT, GTX, LX, SE)
• 1990-1993 Mazda Miata (Base, LE, SE)
• 1992-1993 Mazda MX-3 (Base)
• 1991-1994 Mercury Capri (Base)

Fits select 1988-1994 Mazda 323, Miata, MX-3, and Mercury Capri (1.6L).

Cometic MLS (Multi-Layer Steel) head gaskets are engineered to provide the superior sealing performance required by high-output engines. This gasket features a three-layer design with embossed outer layers of stainless steel coated on both sides with Viton, a heat-resistant fluoroelastomer. This construction allows the gasket to rebound and resist corrosion while withstanding the shearing forces common between aluminum heads and cast iron blocks.

The multi-layer design requires less clamp load than traditional gaskets, resulting in reduced bore distortion and more uniform load distribution across the sealing surface. With no additional sealants required, this gasket is an ideal choice for performance builds and standard engine refreshes alike.

• Bore Size: 80mm
• Compressed Thickness: 0.030"
• Material: Multi-Layer Stainless Steel (MLS)
• Finish: Viton-coated outer layers (heat resistant to 250°C / 482°F)
• Center Shim: Uncoated stainless steel
• Manufacturer Part Number: C4122-030

Fits select 1988-1995 Honda Civic, CRX, and Civic del Sol models (D15B1-2-7 / D16A6-7 SOHC engines).

The Cometic Multi-Layer Steel (MLS) Head Gasket is engineered to provide maximum sealing performance for high-output Honda D-Series engines. This 75.5mm bore gasket features a multi-layer stainless steel construction that offers superior rebound and corrosion resistance compared to composite gaskets. The design utilizes embossed outer layers coated on both sides with Viton—a fluoroelastomer rubber capable of withstanding temperatures up to 250°C (482°F)—to ensure a reliable seal even in harsh combustion environments.

Ideal for both aluminum-to-aluminum and aluminum-to-iron engine configurations, these gaskets effectively handle the shearing forces caused by differing thermal expansion rates. The MLS design requires less clamp load, which helps minimize bore distortion for better ring seal and overall engine longevity.

• Manufacturer Part Number: C4117-030
• Bore Size: 75.5mm
• Compressed Thickness: 0.030 in
• Material: Multi-Layer Stainless Steel with Viton coating
• Installation: Requires no additional sealants
• Temperature Resistance: Up to 250°C / 482°F

Fits select 1997-2020 GM vehicles with Gen 3/4 LS Small Block V8 engines, including Chevrolet Silverado, Corvette, Camaro, GMC Sierra, and Yukon.

This Cometic Gasket DST (Distance Surface Technology) cylinder head gasket is specifically engineered for high-performance LS engine builds. Featuring a 4.100in bore and oversized 1/2in head stud clearance, it is designed to accommodate modified blocks and high-strength fasteners. The .071in thickness provides a reliable sealing solution for builders needing to adjust deck height or fine-tune compression ratios. Cometic’s Multi-Layer Steel (MLS) construction ensures superior thermal load distribution and maintains a positive seal even under high cylinder pressures.

• Manufacturer Part Number: C15749-071
• Engine Series: GM LS Small Block V8 (Gen 3/4)
• Bore Size: 4.100 inches
• Gasket Thickness: .071 inches
• Fastener Clearance: 1/2 inch Studs
• Technology: DST (Distance Surface Technology) Multi-Layer Steel

Fits select 1997-2020 GM LS Gen 3/4 small block V8 engines across Chevrolet Silverado/Corvette, GMC Sierra/Yukon, Cadillac Escalade, and Hummer platforms.

The Cometic DST (Dual Seal Technology) cylinder head gasket is designed for high-performance applications where superior combustion sealing is required. This multi-layer steel (MLS) gasket is specifically engineered for GM LS series engines that have been modified to use 1/2-inch head studs, providing a precise fit and enhanced clamping force distribution. The .063-inch thickness allows for specific compression ratio tuning or deck height adjustments in custom engine builds.

• DST Technology: Features specialized coating and embossment for a reliable seal under high cylinder pressures.
• Custom Bore Size: 4.100-inch bore accommodates oversized cylinders or specific block configurations.
• Stud Compatibility: Drilled for 1/2-inch studs to support high-strength aftermarket hardware.
• Durable Construction: Multi-layer steel (MLS) design for maximum thermal conductivity and resilience.

• Manufacturer Part Number: C15749-063
• Bore Diameter: 4.100 inches
• Gasket Thickness: 0.063 inches
• Stud Size: 1/2 inch
• Engine Series: GM LS Gen-3/4 Small Block V8

This Cometic Gasket DST (Diamond Seal Technology) cylinder head gasket is precision-engineered for GM LSX Gen-4 Small Block V8 engines. Designed to meet the high-pressure demands of performance LS builds, this gasket features a .071-inch compressed thickness and is specifically sized for a 4.200-inch bore. This component is configured for the left-hand side (LHS) and is machined to accommodate a combination of 1/2-inch and 3/8-inch head studs.

• Manufacturer Part Number: C15745-071
• Engine Application: GM LSX Gen-4 Small Block V8
• Bore Diameter: 4.200 in
• Gasket Thickness: .071 in
• Seal Technology: DST (Diamond Seal Technology)
• Stud Compatibility: Fits 1/2 in and 3/8 in head studs
• Orientation: Left Hand Side (LHS)

Cometic's Diamond Seal Technology utilizes a specialized coating to ensure a superior seal across the cylinder head and block deck surfaces, providing the reliability needed for high-output naturally aspirated or forced induction LSX applications.

This Cometic Gasket DST cylinder head gasket is precision-engineered for GM LSX Gen-4 Small Block V8 engines. Measuring .063 inches in thickness with a 4.200-inch bore, this gasket is designed for high-performance applications where superior sealing and durability are required. This specific Left Hand Side (LHS) gasket is configured for engines utilizing a combination of 1/2-inch and 3/8-inch head studs.

• Fits GM LSX Gen-4 Small Block V8 engines
• Thickness: .063 in
• Bore Size: 4.200 in
• Configuration: Left Hand Side (LHS)
• Hardware Compatibility: 1/2 in and 3/8 in Head Studs
• Series: DST (Distance Surface Technology)
• Manufacturer Part Number: C15745-063

Fits select 1997-2020 GM vehicles with LS Gen 3/4 Small Block V8 engines. This Cometic Gasket DST (Dual-Stage Technology) cylinder head gasket is designed for high-performance applications where 1/2-inch head studs have been installed. Engineered to provide a superior seal under high cylinder pressures, this gasket is an essential component for custom LS engine builds requiring a specific 4.150-inch bore diameter.

With a .063-inch thickness, this gasket allows builders to precisely dial in the compression ratio or compensate for material removed during head and block resurfacing. The DST construction ensures maximum recovery and durability across the sealing surface, maintaining integrity even in demanding street or track environments.

• Manufacturer Part Number: C15741-063
• Bore Diameter: 4.150 inches
• Thickness: .063 inches
• Stud Clearance: 1/2 inch
• Engine Compatibility: GM LS Gen 3/4 SB V8
• Series: DST (Dual-Stage Technology)

Fits select 2015-2019 Dodge Challenger and Charger models (6.2L).

This Cometic Gasket DST (Distance Sealed Technology) cylinder head gasket is precision-engineered for the high-performance demands of the Chrysler Gen-3 6.2L Hemi engine. Designed specifically for the Right Hand Side (RHS) of the engine block, this gasket provides the critical sealing required for Hellcat, Demon, and Redeye applications. The DST construction is developed to handle the extreme cylinder pressures and thermal expansion typical of forced-induction Hemi powerplants.

• Manufacturer Part Number: C15732-071
• Engine: Chrysler 6.2L Hellcat Gen-3 Hemi
• Bore Diameter: 4.150 in
• Compressed Thickness: .071 in
• Technology: DST (Distance Sealed Technology)
• Position: Right Hand Side (RHS)

This gasket replaces or upgrades the factory sealing solution to ensure a reliable combustion seal in high-output environments.

Fits 2015-2019 Dodge Challenger and Charger SRT Hellcat, Demon, and Redeye models (6.2L).

Engineered to handle the extreme cylinder pressures of the supercharged Gen-3 Hemi, this Cometic DST (Distance Support Technology) cylinder head gasket provides a superior seal for high-performance forced induction applications. This RHS (Right Hand Side) gasket features specialized multi-layer construction designed to maintain critical torque retention and accommodate thermal expansion under load.

• Manufacturer Part Number: C15732-063
• Series: DST (Distance Support Technology)
• Bore Size: 4.150in
• Compressed Thickness: .063in
• Location: RHS (Right Hand Side)
• Compatible Engine: Chrysler 6.2L Hellcat Gen-3 Hemi

Fits 2015-2019 Dodge Challenger and Charger models equipped with the 6.2L engine (SRT Hellcat and SRT Demon).

This Cometic Gasket DST (Distance Sealed Technology) cylinder head gasket is precision-engineered for the Chrysler 6.2L Gen-3 Hemi engine. Designed specifically for the Left Hand Side (LHS), this gasket utilizes a 4.150-inch bore and .071-inch compressed thickness to maintain a robust seal under the high cylinder pressures of supercharged applications.

• Bore Size: 4.150 in
• Compressed Thickness: .071 in
• Series: DST (Distance Sealed Technology)
• Position: Left Hand Side (LHS)
• Manufacturer Part Number: C15731-071

Fits 2015-2019 Dodge Challenger and Charger SRT Hellcat, Demon, and Redeye models (6.2L).

This Cometic DST (Distance Stopper Technology) head gasket is engineered for the high-cylinder-pressure environments of the Gen-3 Hemi 6.2L supercharged engine. Utilizing multi-layer steel construction, the DST design incorporates a folded stopper layer for superior combustion chamber sealing. This specific gasket is designed for the left hand side (LHS) cylinder bank and features a 4.150-inch bore with a .063-inch compressed thickness, making it a reliable solution for maintaining seal integrity in forced induction Hellcat and Demon applications.

• Manufacturer Part Number: C15731-063
• Bore Size: 4.150in
• Thickness: .063in
• Material: DST Multi-Layer Steel (MLS)
• Engine: Chrysler 6.2L Gen-3 Hemi
• Orientation: Left Hand Side (LHS)

An additional HP Shim Layer can be added to provide increased stress around the combustion seal

• Proprietary high temperature coatings along with embossments

This Part Fits:

Fits 2024 Ford Mustang GT and Dark Horse models (5.0L V8 Gen-4 engine).

This Cometic HP Series cylinder head gasket is engineered to withstand the increased cylinder pressures of high-performance Ford Gen-4 Coyote applications. Designed for the right-hand side (RHS), this gasket features a 94.5mm bore and a .045-inch compressed thickness. It utilizes proprietary high-temperature coatings and precision-engineered embossments to ensure a reliable seal under extreme thermal and mechanical stress.

• Specifically designed for the Gen-4 5.0L V8 platform
• Additional HP Shim Layer provides increased clamp load around the combustion seal
• Advanced high-temperature coatings for superior fluid sealing
• Precision embossments maintain seal integrity across the head-to-block interface
• Bore Size: 94.5mm
• Thickness: .045 in
• Position: Right Hand Side (RHS)
• Manufacturer Part Number: C15697-045

Fits select 2020-2024 Ford E-350, F-250, and F-350 Super Duty models (7.3L Godzilla V8).

These Cometic Hi-Temperature (HT) header gaskets are engineered to provide a superior exhaust seal for the Ford 7.3L Godzilla engine. Measuring .060 inches thick, these gaskets are designed to conform to the sealing area for even load distribution, preventing common exhaust leaks without the need for additional sealants or secondary re-torquing. The precision construction helps maintain clamping force and creates less bore distortion compared to standard gaskets, making them an ideal choice for both stock manifolds and aftermarket headers.

• Engineered specifically for the Ford 7.3L Godzilla V8 engine
• Advanced Hi-Temperature (HT) material construction
• Thickness: .060in
• Configuration: Without heat shields
• Conforms load distribution across the sealing surface for a reliable seal
• No sealants or re-torque required after installation
• Sold as a pair
• Manufacturer Part Number: C15664

Fits 2020-2021 Ford Mustang Shelby GT350, GT350R, and GT500 (5.2L).

The Cometic MLX (Multi-Layer Xtreme) cylinder head gasket is designed for high-performance sealing on the Ford 5.2L Voodoo and Predator Modular V8 engines. This left-hand side (LHS) gasket features an integrated stopper layer that significantly improves clamp load around the cylinder. This specialized construction ensures a robust seal under high combustion pressures without increasing bore distortion, maintaining the structural integrity of your engine block and liners.

• Manufacturer Part Number: C15663-046
• Series: MLX (Multi-Layer Xtreme)
• Bore Diameter: 95mm
• Compressed Thickness: .046in
• Orientation: Left Hand Side (LHS)
• Engine Compatibility: Ford 5.2L Voodoo/Predator Modular V8
• Optimized for high-performance and forced induction applications

Fits 2018-2023 Ford Mustang Bullitt, GT, GT Premium, and Mach 1 (5.0L Gen-3 Coyote V8).

Engineered for high-performance applications, the Cometic MLX (Multi-Layer Xtreme) cylinder head gasket provides superior sealing for the Ford Gen-3 Coyote modular V8. This left-hand side (LHS) gasket utilizes advanced multi-layer steel technology to provide an improved clamp load around the cylinder, ensuring a reliable seal under high combustion pressures without increasing bore distortion.

The MLX series features an extra stopper layer to provide a leading edge against combustion, making it an ideal choice for high-horsepower naturally aspirated or forced induction builds where head lift and gasket failure are common concerns.

• Manufacturer Part Number: C15549-052
• Engine Fitment: Ford 5.0L Gen-3 Coyote Modular V8
• Bore Diameter: 94.5mm
• Compressed Thickness: .052in
• Orientation: Left Hand Side (LHS)
• Design: MLX (Multi-Layer Xtreme) technology
• Materials: High-quality multi-layer stainless steel

Fits select 2018-2023 Ford Mustang Bullitt, GT, GT Premium, and Mach 1 (5.0L).

This Cometic MLX (Multi-Layer Xtreme) LHS cylinder head gasket is engineered specifically for the Gen-3 Ford 5.0L Coyote Modular V8. It features proprietary HP shim technology designed to increase clamp load around the combustion chamber. This ensures a more robust seal on open-deck blocks while preventing the cylinder bore distortion often caused by higher torque loads.

• Specifically designed for the Left Hand Side (LHS) cylinder head.
• 94.5mm bore diameter with a .040-inch compressed thickness.
• MLX technology features an extra fold-over stopper layer for high-cylinder pressure sealing.
• Embossed outer layers are coated with Viton to ensure a reliable seal across various surface finishes.
• Designed to meet the demands of performance street and track applications.
• Manufacturer Part Number: C15549-040

Vehicle Fitment:

• 2019-2020 Ford Mustang Bullitt
• 2018-2023 Ford Mustang GT
• 2018-2023 Ford Mustang GT Premium
• 2021-2023 Ford Mustang Mach 1

Fits select 2018-2023 Ford Mustang Bullitt, GT, GT Premium, and Mach 1 (5.0L).

The Cometic MLX (Multi-Layer Extreme) Cylinder Head Gasket is engineered to meet the sealing demands of the Gen-3 Ford Coyote Modular V8. Designed specifically for the Right Hand Side (RHS), this gasket utilizes an integrated stopper layer to improve clamp load around the cylinder without increasing bore distortion. This advanced construction ensures a reliable seal under the high cylinder pressures of performance street and track applications.

• Series: MLX (Multi-Layer Extreme)
• Bore Size: 94.5mm
• Thickness: .052in
• Engine Compatibility: Ford 5.0L Gen-3 Coyote V8
• Position: Right Hand Side (RHS)
• Manufacturer Part Number: C15548-052

This MLX gasket provides a robust sealing solution for those seeking a durable alternative to OE components when rebuilding or upgrading their 5.0L engine.

Fits 2018-2023 Ford Mustang Bullitt, GT, GT Premium, and Mach 1 models equipped with the 5.0L Gen-3 Coyote Modular V8.

This Cometic MLX (Multi-Layer Xtreme) RHS (Right Hand Side) cylinder head gasket is engineered to meet the sealing demands of high-output Ford Gen-3 Coyote engines. Utilizing advanced HP shim technology, this gasket increases clamp load around the combustion chamber without increasing bore distortion—a critical factor for maintaining engine health and performance on open deck blocks. The multi-layer steel construction features embossed outer layers coated in Viton to ensure a reliable, micro-sealed finish against the head and block surfaces.

• Manufacturer Part Number: C15548-040
• Bore Size: 94.5mm
• Thickness: .040in
• Engine Location: Right Hand Side (RHS)
• Material: MLX (Multi-Layer Xtreme) with Viton-coated outer layers
• Fitment: 2018-2023 Ford 5.0L Gen-3 Coyote V8

Fits select 1997-2020 Buick, Cadillac, Chevrolet, GMC, Hummer, and Isuzu vehicles equipped with Gen III/IV LS-series V8 engines (including LS1, LS2, LS3, and LS6).

This Cometic Multi-Layer Steel (MLS) cylinder head gasket is engineered to handle the rigorous sealing demands of high-performance GM Small Block V8 engines. Featuring advanced HP shim technology, it increases clamp load around the combustion chamber to ensure a reliable seal, specifically on open deck blocks. The embossed outer layers are coated with Viton to provide a superior macro-seal against a variety of surface finishes and harsh load conditions.

• HP shim technology increases clamp load around the combustion chamber for improved sealing.
• Viton-coated embossed outer layers meet the demands of various surface finishes and thermal expansion.
• Uncoated stainless steel center shim layer provides structural integrity and adjustable thickness.
• Engineered to require less clamp load, reducing cylinder bore distortion for better ring seal.
• Provides even load distribution across the entire sealing area.

• Manufacturer Part Number: C15522-040
• Bore Size: 4.080 in
• Compressed Thickness: .040 in
• Material: Multi-Layer Steel (MLS)
• Coating: Viton
• Engine Series: GM Gen III/IV LS V8