What material are these exhaust manifold gaskets made from?

These Cometic gaskets are constructed from ArmorCore, a high-density aramid fiber. This material is chosen for its high-temperature resistance, creep resistance, and fuel resistance, ensuring a solid seal.

Do I need to use any sealant with these gaskets?

No, these ArmorCore gaskets are designed to seal effectively on their own and do not require any additional sealants. They are made from a material that is ready to install right out of the package.

What does it mean that these gaskets require no re-torqueing?

The aramid fiber material used in these gaskets is creep resistant, meaning it maintains its sealing force over time without loosening. This eliminates the need to go back and re-tighten the exhaust manifold bolts after the initial installation.

Cometic Pontiac 326-455 V8 .064in ArmorCore Exhaust Manifold Gasket Set

1 / 2

Specifications

Brand: Cometic Gasket
Part #: C5147-064
UPC: 191070063870

Cometic Pontiac 326-455 V8 .064in ArmorCore Exhaust Manifold Gasket Set

Name: Cometic Pontiac 326-455 V8 .064in ArmorCore Exhaust Manifold Gasket Set
Brand: Cometic Gasket
Price: 25.93 USD
Availability: InStock

$25.93

Only 1 left in stock

Cometic Pontiac 326-455 V8 .064in ArmorCore exhaust manifold gasket set. Features asbestos-free, high-density aramid fiber.

Key Features

Fits 1967-1979 Pontiac, 1975 Buick, 1984 GMC, and 1975 Oldsmobile vehicles.
ArmorCore gaskets are made from high-temperature, high-density aramid fiber.
Material is creep resistant and fuel resistant.
Asbestos-free construction.
Requires no re-torqueing after installation.
No additional sealants are needed.

⚠️ 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

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

This set includes Cometic's ArmorCore exhaust manifold gaskets, designed for Pontiac 326-455 V8 engines. These gaskets are made from a high-temperature, high-density aramid fiber material that resists creep and fuel. They are asbestos-free and do not require additional sealants or re-torquing after installation.

The ArmorCore material is well-built to handle the heat and pressure found in exhaust systems. Because it's a high-density fiber, it seals well without needing extra steps like applying sealant, which can sometimes make future removal more difficult. This makes for a cleaner installation and a reliable seal that holds up over time.

This gasket set fits a range of classic GM vehicles, including many Pontiac models like the Bonneville, Catalina, Firebird, and GTO, as well as some Buick, GMC, and Oldsmobile applications from the 1960s and 1970s. Always check the full fitment list to confirm compatibility with your specific vehicle.