Best Car Header Gaskets in 2026

Meets or exceeds all original equipment specifications

Application specific design to ensure a perfect fit

Validated for fit

Head sets contain gaskets and seals necessary for a valve grind or head reconditioning job

Application specific design to ensure a perfect fit and premium seal

Premium quality parts you can trust

1-7/8" Diameter Round Port; Chevy V8 - 4.8L, 5.3L, 6.0L LS2 ('99-'08), 5.7L, LS1 LS6 ('97-'08), includes Vortec, Manifold or Headers, 2/Set

Port configuration comparable to Fel-Pro 1440

Heating and cooling of the exhaust system causes header and manifold flanges to warp resulting in gaps between the head and header which Remflex exhaust gaskets seal completely due to the thickness and compressibility of the 100 percent flexible graphite

【FIRMLY CLIP & 50X SHOCKPROOF】: Features a strong triangle support, an extendable chromed steel clip hook and a metal screw mechanical lock clasp, YRU car phone mount holds your phone tightly to the air vent and maintains the optimal viewing angle even on the bumpy road or sharp turn. Integration of up to 500+ competitors’advantages, 30000KM+ road test. Enabling you to drive in confidence

【INNOVATIVE DESIGN & EXTRA PROTECTION】Integrated with a locking reminder device that prevents from being overfastened, providing extra vents/mount protection. Steel Hook with chromed surface is more durable and has no sharp edges. Multi-layered silicone pads protect your phone and vent fins from being scratched

【360°ROTATION & ONE-HAND OPERATION】: With YRU phone holder, your cell phone can be adjusted to any view angle without blocking the vents.You can easily lay and remove the phone on the wide comfortable phone cradle with instant release button and just enjoy the best driving experience

3" Header Collector Gasket---- The header collector gaskets are especially designed for SBC BBC 302 350 454 383, and fit all 3 inch collector with Triangle (3 Bolt Pattern). brand new, please confirm whether the product is suitable before purchasing

High Quality Copper---- The 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

Part number: 27340

Orem equivalent part number: 27340

Package Weight : 0.09 kilograms

Aluminum Reinforced Graphite Exhaust Manifold Gasket

Complete Hardware Kit for Installing Aftermarket Header to your Vehicle

Great for Replacement of Missing or Damaged Gaskets

▶️ Aluminum Reinforced Graphite Exhaust Manifold Gasket

▶️ Complete Hardware Kit for Installing Aftermarket Header to your Vehicle

▶️ Great for Replacement of Missing or Damaged Gaskets

Height: 15mm / 0.59"; Product Name: Exhaust Donut Gasket

Material: Graphite; Package Content: 1 x Exhaust Donut Gasket

Inner Diameter: 48mm/ 1.9"

Genuine Mr. Gasket product

Designed for performance

Made from quality materials

These Copper Plating​ Exhaust Gaskets are fit for SB Chevy 283-327-350-383-400 engines. Original standard, direct replacement for your old or broken one.

The Gsk moto Exhaust Gaskets are made with top quality copper plating material for maximum durability.

Seal perfectly every time by creating a tight leakproof seal by using a clad o-ring design that will last!

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.

Precision fit for improved sealing

Steel core provides superior adhesion

Design constributes to exact fit between cylinder head and header to improve exhaust flow

BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built

Premium Graphite Material Ensures Leak Free Seal Every Time

Port Matched For Optimum Flow of All Exhaust Headers

Precision fit for improved sealing

Steel core provides superior adhesion

Design constributes to exact fit between cylinder head and header to improve exhaust flow

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

Package quantity: 1

Product type: Auto Part

BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built

Premium Graphite Material Ensures Leak Free Seal Every Time

Port Matched For Optimum Flow of All Exhaust Headers

Reflex's unique flexible graphite material has been proven for more than 30 years

Manifold or header applications

1-15/16 inch width x 2-5/32" Square Port; Ford V8 - 351 ('70-'74) Cleveland 4bbl Carb. (Includes Boss, High Output and Cobra Jet) Square Port, 2/Set

BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built

Premium Graphite Material Ensures Leak Free Seal Every Time

Port Matched For Optimum Flow of All Exhaust Headers

BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built

Premium Graphite Material Ensures Leak Free Seal Every Time

Port Matched For Optimum Flow of All Exhaust Headers