13 best header gaskets

Header gaskets are a type of sealing component used in automotive applications, particularly in the exhaust system. They are designed to create a tight and secure seal between the exhaust headers (also known as exhaust manifolds) and the engine's cylinder head. These gaskets are an essential part of the exhaust system, as they help prevent exhaust gases and noise from leaking out and ensure that the exhaust gases are properly directed through the exhaust system.

Here are some key points about header gaskets:

  1. Material: Header gaskets are typically made from heat-resistant materials like graphite, steel, or composite materials. These materials can withstand the high temperatures generated by the engine and exhaust system.

  2. Sealing Function: The primary function of header gaskets is to create an airtight seal between the exhaust headers and the cylinder head. This prevents exhaust gases from escaping before they are channeled through the exhaust system, ensuring optimal performance and reducing emissions.

  3. Performance Enhancement: Upgrading header gaskets can sometimes improve exhaust flow and contribute to increased engine performance. High-performance gaskets are available for enthusiasts looking to optimize their vehicle's exhaust system.

  4. Replacement: Header gaskets may need replacement over time due to wear and tear, heat cycling, or leaks.Replacing worn gaskets is important to maintain the efficiency and functionality of the exhaust system.

  5. Compatibility: It's essential to choose header gaskets that are compatible with your specific vehicle's make and model to ensure a proper fit and seal.

In summary, header gaskets play a critical role in maintaining the integrity of an automotive exhaust system. They create a secure seal between the exhaust headers and the cylinder head, ensuring that exhaust gases are properly directed and preventing leaks that could reduce engine performance or increase emissions.

Below you can find our editor's choice of the best header gaskets on the market
  

SCE Gaskets 4300 3" Copper Collector Gasket

SCE Gaskets

Based on 105 reviews Check latest price

Product description

Meyer SCE4300

  • Collector Gasket
  • Pro Copper
  • 3 in Diameter
  • 3 Bolt

User questions & answers

Question: What are these sce gasket 4300 3" copper collector gasket's 3/8" center to center hole measurements ?? 3 3/8" or
Answer: Some people can't read. Depending the wiring in your home 1,500 watt heaters can cause fires because the electrical wiring the house can't handle a 1500 watt powers draw, even with 15 amps. Because this heater only draws 700 watts its safer than any other product that pulls 1500 watts.
Question: Anyone know if these fit the 3 inch QTP exhaust cutouts
Answer: This is manually updated... But it does have thermostat and it does cut on and off via thermostat.
Question: What thickness are they
Answer: A noise like this in a space heater is usually caused by the tip-over sensor. They often use a small metal ball to depress a switch when upright, which rolls away and disconnects the circuit when tipped.
Question: Looks like it would but would these fit headers for a 304 V
Answer: Cost Per Hour: 0.1950 Cost Per Day: 1.5600 Cost Per Month: 47.46 Cost Per Year: 569.46 kWh Per Day: 12.00 Hours Used Per Day: 8 Power Use (Watts): 1500 Price (kWh): 0.13

Mr. Gasket - 5901 Ultra-Seal Header Gaskets Sb Chev

Mr. Gasket

Based on 24 reviews Check latest price

Product description

This ultra-seal exhaust gasket is made of high temperature steel core/graphite faced exhaust material which seals the connection between the manifold and cylinder head. It prevents exhaust leakage out of the connection and also ensures that all exhaust gas will flow through the catalytic converter for treatment. Flange and ring gaskets seal other connection points in the exhaust system. It can be trimmed for modified ports and is packaged 2 per set. V6 and V8 engines require two manifold gaskets.

  • 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
  • Conforms to and seals minor surface irregularities
  • Can be trimmed if necessary for modified port application
  • Fit type: Vehicle Specific

Hedman Hedders 27500 Exhaust Header Gasket Round Exhaust Header Gasket

Hedman Hedders

Based on 76 reviews Check latest price

Product description

Hedman Hedder flange gaskets have been formulated and designed specifically for use with Hedman Hedders. The malleable properties of our special gasket material works in synch with the sealing rings around the ports on our head flange, to ensure a secure seal.

  • Package Weight: 0.139 kg
  • Product Type: Auto Part
  • Package Quantity: 1
  • Country Of Origin: United States

User questions & answers

Question: how many does this come with
Answer: I don't know if it would auto shut off if it turns over (I would think probably since it will auto shut off if it overheats). It is sealed so you don't have to worry about oil leaking out if it does turn over. I turn it on with the heating element all the way up in my bedroom and it sits on the carpet and it doesn't have any issues with catching on fire. It does, however, keep my room nice and toasty at night in the coldest nights during the winter. just be sure you turn it off and unplug it when it's not in use for safety reasons.
Question: are these metal if not what material are they
Answer: Around 400 square feet, it's not a big heater, so far so good. If you need a heater to heat a small space for some personal heat, these mini Costway heaters are great, and use only 700-watts of power. But, if you need to heat up an entire room, I would recommend full size oil heaters in the 1500-watt range.

Mr. Gasket 7153 Copper Seal Exhaust Gaskets - Pair

Mr. Gasket

Based on 17 reviews Check latest price

Product description

These copper seal exhaust gasket are made from 0.043" solid copper and are racetrack proven to eliminate exhaust leaks in top fuel dragster, funny car, and alcohol class racecars. The dimensions of the port measure 1.6'' high by 1.5'' wide. They feature an embossed O-ring design to increase sealing pressure around the exhaust ports creating a tight, leak-proof seal. They are also ideal for motor homes and towing. They are sold as a pair.

  • Genuine Mr. Gasket product
  • Designed for performance
  • Made from quality materials
  • Easy installation
  • Durable and long lasting
  • Fit type: Vehicle Specific

User questions & answers

Question: Will these work on a 99 5.7 350 vortec heads
Answer: no it Fits Chevrolet 1957-1967 small block and Big Block 1965-1967

Fel-Pro MS9275B Exhaust Manifold Gasket Set

Fel-Pro

Based on 275 reviews Check latest price

Product description

Fell-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

  • Fit type: Vehicle Specific
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
  • Engineered for the sealing repair environment

User questions & answers

Question: whats the gasket colled that goes between the exhaust manifold and the header pipe
Answer: cut outs are the same as collector mounting so they should fit if you know yours are 3 inch
Question: Is this price for a pair of gaskets or just one
Answer: 0.2 inches or 5.08 mm
Question: Do they work on headers
Answer: So long as the collector bolt pattern is 3 inch, headers are universally the same size at the collector, 2.5, 3.0 or 3.5 the vast majority take a 3 inch. So by average application they should fit, hope this helps
Question: Can I used high temp gasket sealant in addition to this
Answer: 14 inch high or 24 inch high (more expensive)

Exhaust Manifold Gasket Set

Fel-Pro

Based on 341 reviews Check latest price

Product description

Fell-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function

User questions & answers

Question: Do these come with manifold to exhaust gaskets too
Answer: A pair. One for the left side and one for the right side!
Question: Is this gasket set for both the right and left manifold
Answer: They have a stainless steel center sandwiched between high temp composite graphite gasket material. If you're worried about the gasket blowing out, it's not the gaskets fault but the header and bolt quality. Buy quality locking header bolts and these gaskets will last for years.
Question: Is it install for Pace Setter headers
Answer: THEY ARE USUALLY SPECIFIC IN THEIR MEASUREMENTS. THE COPPERS ARE NOT THE BEST ANYWAYS ! TOO THIN ! GO FOR THICKER ONES !

MAHLE MS16124 Gasket (Packaging may vary)

MAHLE Original

Based on 413 reviews Check latest price

Product description

MAHLE Original gaskets provide world class sealing products trusted by OEMs & Technicians around the globe

  • All MAHLE Original gaskets meet or exceed the original equipment specifications providing the finest sealing products available
  • MAHLE Original gaskets utilizes OE equivalent or better materials in all our gaskets
  • Exhaust manifold gasket set contains all gaskets required.
  • The contents of MAHLE Original gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package

User questions & answers

Question: do the fit small block mopar engines
Answer: If you have the stock style exhaust manifolds and y pipe if there is a gasket in between the exh manifold and the exhaust would typically be a donut gasket. If you are running headers in to exhaust pipe it would have header collector gaskets and those usually would be flat and have 3 holes. Whats the year make and model??
Question: Will these fit ls 6.0 motor
Answer: The whole set, left and right
Question: Has anyone used these gaskets with Speed Engineering headers
Answer: I don’t see why they wouldn’t, but the only reason these gaskets are used in because stock manifolds warp, if the headers aren’t warped you shouldn’t need gaskets, new cars do not come with gaskets, just a precise machined surface
Question: Has anyone used these gaskets with Speed Engineering headers
Answer: NO never put sealant on manifold gaskets, if your heads are that warped, replace them

Hedman 27520 Flange Gaskets - Set of 2

Hedman

Based on 62 reviews Check latest price

Product description

Hedman Hedder flange gaskets have been formulated and designed specifically for use with Hedman Hedders. The malleable properties of our special gasket material works in synch with the sealing rings around the ports on our head flange, to ensure a secure seal.

  • Package Dimensions: 0.8 H x 58.0 L x 12.2 W (centimeters)
  • Fit type: Vehicle Specific
  • Country of Origin : United States
  • Package Weight: 0.308 pounds

User questions & answers

Question: i ordered 27520 hedman exhaust gaskets--the picture is a tire?? will i get the gaskets
Answer: "Is it install for Pace Setter headers?" Good grammar!I used these to install 2010 Carmaro headers onto a Silverado 5.3l. They would also fit stock headers.

Hedman Hedders 27770 Exhaust Header Gasket Ford 429-460 Exhaust Header Gasket

Hedman Hedders

Based on 8 reviews Check latest price

Product description

Hedman Hedder flange gaskets have been formulated and designed specifically for use with Hedman Hedders. The malleable properties of our special gasket material works in synch with the sealing rings around the ports on our head flange, to ensure a secure seal.

  • Hedman gaskets are made of a special gasket material developedfor Hedman. Accept no substitute. Hedman Gaskets are available forall header applications. They were made to be exact matches totheir headers ensuring a proper fit and seal. Check with yourheader installation instruction to get the proper number for yourheaders.Hedman gaskets are made of a special gasket material developedfor Hedman. Accept no substitute. Hedman Gaskets are available forall header applications. They were made to be ex

Proform 67929 Header Gasket

ProForm

Based on 5 reviews Check latest price

Product description

Proform 67929 Header Gasket

  • Proform 67929 Header Gasket

Fel-Pro MS94054 Exhaust Manifold Gasket Set

Fel-Pro

Based on 203 reviews Check latest price

Product description

Fell-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
  • Fit type: Vehicle Specific

User questions & answers

Question: will this work with a 1999 yukon with a 5.7 in it
Answer: These do not come with the doughnut gaskets. Only what is shown in the picture is in the box.
Question: Will it fit first gen 350 Small block
Answer: Gasket sets will always include the complete assortment with very few exceptions. Usually head set gaskets are complete but they can come separate. The pictures are Amazon are accurate and can be trusted.

LucaSng A Pair SBC Oval Port Copper Header Exhaust Gasket Seal For Chevy SB 327 305 350 383 Reusable Exhaust Manifold Gasket Set

Based on 13 reviews Check latest price

Product description

Description:

  • 100% brand new, Never been tried or installed
  • Fits all SB Chevy 283-327-350-383-400 engines.
  • Surface Finish:COPPER / INLAY
  • Made of copper.
  • Reusable, no sealant required.
  • Seal perfectly every time by creating a tight leak proof seal by using a clad o-ring design that will last.
  • Fits all SB Chevy engines oval port.
  • These gaskets provide an excellent seal & we guarantee it. 

Feature:

  • According to the original factory specifications,perfect match for the original car.
  • Own different test machines to design exact accurate parameter for our products.All switches were tested for performance.
  • Made by high quality material, lightweight, anti-rust, colorfast and durable.
  • Aftermarket product with premium quality.
  • Stable performance, high reliability,suitable for replacing your broken one. 

Package including:

  • 2X Gaskets
  • As shown in the Picture Show 

Fitment:

  • Fits all SB Chevy 283-327-350-383-400 engines

  • The Header Exhaust Gaskets is suitable for SB, for Chevy 283-327-350-383-400 engines all;Fits all SB Chevy engines oval port.
  • Surface Finish:COPPER / INLAY;Made of copper.;Reusable, no sealant required.
  • Safe and Reliable:Own different test machines to design exact accurate parameter for our products. All switches were tested for performance.
  • Seal perfectly every time by creating a tight leak proof seal by using a clad o-ring design that will last.
  • Made by high quality material, lightweight, anti-rust, colorfast and durable. Aftermarket product with premium quality. Stable performance, high reliability,suitable for replacing your broken one.

User questions & answers

Question: How thick are the gaskets
Answer: Yes, 1 7/8 long tubes on my 6.2 escalade. Perfect fit

Mr. Gasket - 7402G ALM Exh Gaskets-Sb Chev Rnd Lg

Mr. Gasket

Based on 54 reviews Check latest price

Product description

Mr. Gasket Aluminum Multi-Layered Exhaust Gaskets are designed to provide excellent sealing. They are fabricated from a large fiber gasket material which ensures extreme durability. These gaskets are heat resistant and reusable. They feature a precision die cut and are backed by a limited warranty.

  • Genuine Mr. Gasket product
  • Designed for performance
  • Made from quality materials
  • Easy installation
  • Durable and long lasting
  • Fit type: Vehicle Specific

User questions & answers

Question: How thick are these
Answer: I used it for a connection between a catalytic converter and exhaust manifold. I wouldn't double it up of it's an application where there is pressure. It will leak and the gasket sealer will blow out. If the gasket is sealing properly it should hold with one layer and no sealant.
Question: Will this fit my 97 Silverado with shorty headman headers
Answer: You know, that was quite a while ago. I may have some left, but difficult to find. I'm not sure it was 1/16", but I am sure it was less than .2" thick.
Question: Will these fit square port heads to round header tubes
Answer: 2 3/4 inches tall and 4 inch diameter
Question: Will these fit Oval port headers
Answer: Hmmmmmm. Don't honestly know. I was surprised that it fit PERFECTLY on my Carter one barrel (on my '39 Ply). It does come with a decent rubber "Filler" gasket. That seems to make up for a lot of possible gap.

Latest Reviews

View all