Gaskets and Seals - Intake Manifold Gaskets

Cometic Intake Gasket -Big Block Chevy Rectangular Port Without Top Bolt Holes Competition Style - Sold in Pairs

Cometic AFM intake gaskets are constructed from a chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core. The gasket material has a temperature resistance of over 250 degrees and an 85 percent recovery, while maintaining strong torque retention. Cometic AFM intake gaskets are ideal for machined surfaces, especially uneven stamped surfaces that have been plated. AFM intake gaskets retain torque and require no additional sealers.

• Material: Fiber
• Compressed Thickness: .060
• Port Shape: Rectangle
• Port Size: 1.754 x 2.505
• Sold in Pairs

Xtreme Marine™ Seal Intake Gasket -Big Block Chevy 454/502 Oval Port- Sold in Pairs

These hi-performance intake manifold gasket sets are manufactured using thelatest in synthetic fiber nitrile materials. This material is designedwithout any metal core allowing engine builders the option of port trimming formodified ports. These gaskets resist oil, gasoline, and evenalcohol. A silicone sealing bead has been added to our Xtreme Marine SealGaskets for an additional sealing bead around ports where it's needed most onmodified engines.

• Exceeds original equipment specifications
• Perfect for bi-metal applications (aluminum intake / cast iron blocks)
• Silicone beaded for a leak-proof seal

Sold in Pairs

Xtreme Marine™ Seal Intake Gasket -Big Block Chevy 454/502 Rectangular Port- Sold in Pairs

These hi-performance intake manifold gasket sets are manufactured using the latest in synthetic fiber nitrile materials. This material is designed without any metal core allowing engine builders the option of port trimming for modified ports. These gaskets resist oil, gasoline, and even alcohol. A silicone sealing bead has been added to our Xtreme Marine Seal Gaskets for an additional sealing bead around ports where it's needed most on modified engines.

• Exceeds original equipment specifications
• Perfect for bi-metal applications (aluminum intake / cast iron blocks)
• Silicone beaded for a leak-proof seal

Note: These gaskets have a bolt hole provision above the intake ports. These generally only fit stock cylinder heads. Use 300-17342 for aftermarket cylinder heads without the bolt hole provision.

Sold in Pairs

Xtreme Marine™ Seal Intake Gasket -Big Block Chevy Rectangular Port Without Top Bolt Holes Competition Style (No End Seals)- Sold in Pairs

These hi-performance intake manifold gasket sets are manufactured using the latest in synthetic fiber nitrile materials. This material is designed without any metal core allowing engine builders the option of port trimming for modified ports. These gaskets resist oil, gasoline, and even alcohol. A silicone sealing bead has been added to our Xtreme Marine Seal Gaskets for an additional sealing bead around ports where it's needed most on modified engines.

• Exceeds original equipment specifications
• Perfect for bi-metal applications (aluminum intake / cast iron blocks)
• Silicone beaded for a leak-proof seal
• Includes cork end gaskets and a distributor gasket

Sold in Pairs

• Material: MLS
• Compressed Thickness: .051
• Port Shape: Rectangular
• Port Size: 2.505x1.850

Sold in Pairs

• Material: Fiber
• Compressed Thickness: .060
• Port Shape: Rectangle
• Port Size: 1.754 x 2.505
• Replacement for Mercury # 27-818188
• Fits: MCM 450, 500, 500 Bulldog, 525SC, 600SC & 800SC (1991 & newer) 500 EFI , 525EFI
  

Sold in Pairs

Standard Marine Seal Intake Gasket -Ford 460 V8- Sold in Pairs

These hi-performance intake manifold gasket sets are manufactured using the latest in synthetic fiber nitrile materials. This material is designed without any metal core allowing engine builders the option of port trimming for modified ports. These gaskets resist oil, gasoline, and even alcohol.

• Exceeds original equipment specifications
• Perfect for bi-metal applications (aluminum intake / cast iron blocks)
• Port Size is 2.50" Tall by 2.20" Wide

Sold in Pairs

Xtreme Marine™ Seal Intake Gasket -Ford 460 V8- Sold in Pairs

These hi-performance intake manifold gasket sets are manufactured using the latest in synthetic fiber nitrile materials. This material is designed without any metal core allowing engine builders the option of port trimming for modified ports. These gaskets resist oil, gasoline, and even alcohol. A silicone sealing bead has been added to our Xtreme Marine Seal Gaskets for an additional sealing bead around ports where it's needed most on modified engines.

• Exceeds original equipment specifications
• Perfect for bi-metal applications (aluminum intake / cast iron blocks)
• Silicone beaded for a leak-proof seal
• Port size 2.250" Tall by 2.00" Wide

Sold in Pairs

Xtreme Marine™ Seal Intake Gasket -Small Block Chevy 350 Early Non-Vortec Head- Sold in Pairs

These hi-performance intake manifold gasket sets are manufactured using the latest in synthetic fiber nitrile materials. This material is designed without any metal core allowing engine builders the option of port trimming for modified ports. These gaskets resist oil, gasoline, and even alcohol. A silicone sealing bead has been added to our Xtreme Marine Seal Gaskets for an additional sealing bead around ports where it's needed most on modified engines.

• Exceeds original equipment specifications
• Perfect for bi-metal applications (aluminum intake / cast iron blocks)
• Silicone beaded for a leak-proof seal

Sold in Pairs

Xtreme Marine™ Seal Intake Gasket -Small Block Chevy 350 Vortec Head- Sold in Pairs

These hi-performance intake manifold gasket sets are manufactured using the latest in synthetic fiber nitrile materials. This material is designed without any metal core allowing engine builders the option of port trimming for modified ports. These gaskets resist oil, gasoline, and even alcohol. A silicone sealing bead has been added to our Xtreme Marine Seal Gaskets for an additional sealing bead around ports where it's needed most on modified engines.

• Exceeds original equipment specifications
• Perfect for bi-metal applications (aluminum intake / cast iron blocks)
• Silicone beaded for a leak-proof seal

Sold in Pairs

Xtreme Marine™ Seal Intake Gasket -Oldsmobile 350-455 V8- Sold in Pairs

These hi-performance intake manifold gasket sets are manufactured using the latest in synthetic fiber nitrile materials. This material is designed without any metal core allowing engine builders the option of port trimming for modified ports. These gaskets resist oil, gasoline, and even alcohol. A silicone sealing bead has been added to our Xtreme Marine Seal Gaskets for an additional sealing bead around ports where it's needed most on modified engines.

• Exceeds original equipment specifications
• Perfect for bi-metal applications (aluminum intake / cast iron blocks)
• Silicone beaded for a leak-proof seal

Sold in Pairs

Xtreme Marine™ Seal Intake Gasket -Chevy 4.3L V6- Sold in Pairs

These hi-performance intake manifold gasket sets are manufactured using the latest in synthetic fiber nitrile materials. This material is designed without any metal core allowing engine builders the option of port trimming for modified ports. These gaskets resist oil, gasoline, and even alcohol. A silicone sealing bead has been added to our Xtreme Marine Seal Gaskets for an additional sealing bead around ports where it's needed most on modified engines.

• Exceeds original equipment specifications
• Perfect for bi-metal applications (aluminum intake / cast iron blocks)
• Silicone beaded for a leak-proof seal

Sold in Pairs