Best Mr Gasket Performance Exhaust Header Gaskets in 2026

2 1/2" Header Collector Gasket---- The exhaust header collector gaskets are especially designed for SBC BBC 302 350 454, and fit all 2.5 inch collector with Triangle (3 Bolt Pattern). brand new, please confirm whether the product is suitable before purchasing

High Quality Copper---- The exhaust header collector gasket is made of finest .041’’ thick solid copper with impeccable durability performance, wear-resisting, anti-strike, anti-scratch, dust-proof and colorfast

Sealing Performance---- Embossed port ridge for a perfect leak-proof seal, no additional sealant is required. No more worry about leaky header blues

Manufactured from high-temperature steel core/graphite faced exhaust material

Expanded steel core provides stability and maximum torque retention to eliminate gasket failure

Graphite impregnated facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head

Manufactured from high-temperature acrylic blend exhaust material

Provides excellent sealing and durability

Can be trimmed if necessary for modified port applications

Manufactured from high-temperature steel core/graphite faced exhaust material

Expanded steel core provides stability and maximum torque retention to eliminate gasket failure

Graphite impregnated facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head

Meets or exceeds all original equipment specifications

Application specific design to ensure a perfect fit

Validated for fit

Manufactured from high-temperature steel core/graphite faced exhaust material

Expanded steel core provides stability and maximum torque retention to eliminate gasket failure

Graphite impregnated facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head

One pair of header flange gaskets.

Aluminum - Polished - Center Bolt Valve Covers - Small Block

Chevy - Pair

Genuine Mr. Gasket product

Designed for performance

Made from quality materials

Fit for : SBC Header Gaskets Fits for SB 283-327-350-383-400 engines.

Fit for : SBC Header Gaskets Fits for SB 283-327-350-383-400 engines.

Fit for : SBC Header Gaskets Fits for SB 283-327-350-383-400 engines.

1-3/4" Round Port; Chevy V8 - 396, 402, 427, 454 ('65-'90), 1-3/4" Round Port, For Raised Weld Bead Headers, 2/Set

There are no rubber binders or composite materials in Remflex exhaust gaskets so they will not shrink or harden due to time or temperature eliminating the need to go back and continually retighten your flange bolts

For use with raised weld bead headers; additional sealing material is provided around the weld bead to provide a better seal

Manufactured from high-temperature steel core/graphite faced exhaust material

Expanded steel core provides stability and maximum torque retention to eliminate gasket failure

Graphite impregnated facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head

Applicable models ---- Each time you use a coated O-ring design to create a tight leak-proof seal, suitable for SB Chevy 283-327-350-383-400 engine, please check the car model before buying, avoid buying the wrong one.

Excellent material ---- Header Exhaust Gasket Seal is made of high-quality solid copper material. It has great durability, is firm and not easy to crack.

Reusable ---- Exhaust Manifold Gasket Set is a partial component. It is flexible and can be reused. It does not require a sealant. It can adjust the fixed length according to actual needs and has good performance.

2 inch width x 1-7/8 inch height Irregular Shape Stock Sport; Chevy V8 - GMC BB 454/496/502 Gen. Mark (IV,V,VI),('91 and Newer), Manifold or Headers, 2/Set

For use with stock cast iron and GM Performance aluminum cylinder heads

There are no rubber binders or composite materials in Remflex exhaust gaskets so they will not shrink or harden due to time or temperature eliminating the need to go back and continually retighten your flange bolts

Designed to deliver trouble-free, consistent performance

Right for your vehicle and lifestyle

Made from high-quality materials for ultimate durability

Package dimensions: 11.43 cms L x 53.34 cms W x 54.61 cms H

Package quantity: 1

Product type: Auto Part

Dimensions measure 1.9'' high by 1.9'' wide

Designed to improve the sealing

Has great tensile strength