Premium Copper Header Gaskets for Small Block Chevy (Gen 1 SBC)

Reusable Copper Exhaust Header Gaskets with O-Ring Sealing Technology

Get a reliable exhaust seal for your Small Block Chevy build with these Premium Copper Header Gaskets. Designed for Gen 1 SBC engines from 1955–2002, including 265, 283, 302, 305, 327, 350, 383, and 400 cubic-inch applications, these reusable oval-port gaskets combine copper construction with integrated O-ring technology for dependable sealing and heat resistance.

Ideal for classic restorations, hot rods, street machines, and off-road builds, these gaskets are designed for use with compatible SBC exhaust headers and manifold applications. Their reusable construction allows for future removal and reinstallation without requiring sealant.

Key Features

• Gen 1 SBC Compatibility: Designed for Small Block Chevy engines from 1955–2002, including 265, 283, 302, 305, 327, 350, 383, and 400 applications.

• Copper Construction: Built to handle high exhaust temperatures and resist corrosion.

• Reusable Design: Can be removed and reinstalled without requiring replacement after every removal.

• O-Ring Sealing Technology: Integrated O-ring design helps create a secure exhaust seal and reduce leakage.

• No Sealant Required: Designed for installation without additional gasket sealant.

• Oval-Port Design: Made for compatible oval-port Small Block Chevy cylinder heads.

• Versatile Applications: Suitable for compatible exhaust header and manifold installations.

Product Features & Specifications

Compatible Engine Applications

Designed for compatible Gen 1 Small Block Chevy engines:

• 265 SBC

• 283 SBC

• 302 SBC

• 305 SBC

• 327 SBC

• 350 SBC

• 383 SBC

• 400 SBC

Important: These gaskets are designed for oval-port cylinder heads. Verify the cylinder head port configuration and gasket dimensions before ordering, as engine displacement alone does not confirm fitment.

Copper Construction & Heat Resistance

Made from copper, these exhaust header gaskets are designed to withstand the high temperatures associated with exhaust systems. The material also offers corrosion resistance, making the gaskets suitable for performance builds and long-term automotive use.

O-Ring Sealing Technology

The integrated O-ring design helps create a secure sealing surface between compatible cylinder heads and exhaust components. This technology is intended to help reduce exhaust leaks while maintaining a reusable gasket design.

What's Included

• 2 x Reusable Copper Header Gaskets – Oval Port

Frequently Asked Questions

Which engines do these copper header gaskets fit?
They are designed for compatible Gen 1 Small Block Chevy engines from 1955–2002, including 265, 283, 302, 305, 327, 350, 383, and 400 applications.

Are these gaskets reusable?
Yes. They feature a reusable copper construction and can be removed and reinstalled when properly maintained.

Do these gaskets require sealant?
No. They are designed to install without additional gasket sealant.

What type of cylinder head ports do they fit?
These gaskets are designed for compatible oval-port Small Block Chevy cylinder heads. Check your head's port shape and gasket dimensions before ordering.

Can these be used with exhaust headers and manifolds?
They are intended for compatible SBC exhaust header and manifold applications. Confirm the flange and port configuration before installation.

Are these suitable for a 350 Chevy engine?
Yes, they are listed for compatible Gen 1 350 SBC applications with oval-port cylinder heads.

Fitment & Installation Notes

• Designed for Gen 1 Small Block Chevy applications.

• Compatible with oval-port cylinder heads only.

• Verify port shape and gasket dimensions before ordering.

• Designed for installation without additional sealant.

• Proper surface preparation and correct fastener tightening are important for a reliable exhaust seal.