1966 Mercury Comet Performance Headers

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    • (0 reviews)
      # 1022133156
      Mercury Comet with Ford Small Block 221-302/351W Engine 1966, Hugger Exhaust Headers by Sanderson Headers®. Primary Tubing Diameter: 1.5". Collector Outlet Diameter: 2.5". This top-notch product by Sanderson Headers is made to give that...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $345.00 - $525.00
    • (0 reviews)
      # 203908418
      Mercury Comet Base with Air Conditioning without Smog Injection or Injection Heads 1966, Elite Ultra-Duty Mild Steel Racing Exhaust Headers by Hedman Hedders®. Header Coating: Ceramic Coating. Hedman's ELITE Hedders are the best you can...
      Made of High Quality MaterialsIdeal for Heavy Duty Applications
      $414.74 - $560.89
    • (0 reviews)
      # mpn4564007211
      Mercury Comet Base 4.7L 1966, Elite Ultra-Duty Street Mild Steel Mid-Length Tube Racing Exhaust Headers by Hedman Hedders®. Primary Tubing Diameter: 1.5". Collector Outlet Diameter: 2.5". Color: Black. Header Coating: Ceramic Coating....
      Made of High Quality MaterialsIdeal for Heavy Duty Applications
      $515.14
    • (0 reviews)
      # mpn4564006695
      Mercury Comet Base 4.7L 1966, Mild Steel Mid-Length Tube Racing Exhaust Headers for Pro-Touring Set-Ups by Hedman Hedders®. Primary Tubing Diameter: 1.5". Collector Outlet Diameter: 2.5". Color: Black. Header Coating: Ceramic Coating....
      High quality at an affordable priceExpertly made from premium materials
      $484.32
    • (0 reviews)
      # 466758653
      Mercury Comet Base A Engine VIN Character with Air Conditioning without Smog Injection or Injection Heads with C4 Automatic Transmission with Floor Shifter 1966, Standard Duty Long Tube Racing Exhaust Headers by Hedman Hedders®. Primary...
      Made from High Quality MaterialsBuilt to Last
      $244.85 - $1,086.78
    • (0 reviews)
      # 97234609
      Mercury Comet Base 4.7L / 6.4L / 7.0L with Air Conditioning without Smog Injection or Injection Heads with Power Steering with Automatic Transmission Floor Shifter 1966, Standard Duty Mid-Length Tube Racing Exhaust Headers by Hedman...
      Made of High Quality MaterialsBuilt to Last
      $221.30 - $1,012.92
    • (0 reviews)
      # mpn4564006055
      Mercury Comet Base 4.7L 1966, Standard Duty Mild Steel Long Tube Racing Exhaust Headers by Hedman Hedders®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Color: Black. Header Coating: Ceramic Coating. Header Style:...
      Made of High Quality MaterialsExtremely durable, protective SATIN BLACK ceramic-metallic coating
      $511.59
    • (0 reviews)
      # 403269431
      Mercury Comet Base 4.7L 1966, Street 304 SS Racing Exhaust Headers by Hedman Hedders®. Collector Outlet Diameter: 2.5". Color: Black. Header Coating: Ceramic Coating. This product is made of high-quality materials to serve you for years...
      High quality at an affordable priceExpertly made from premium materials
      $1,006.11 - $1,076.55
    • (0 reviews)
      # 841914828
      Mercury Comet 1966, 4-Tube Steel Long Tube Exhaust Headers by Doug's Headers®. Header Style: Long Tube. Doug's headers are carefully developed on the vehicles they are intended to fit and are re-checked numerous times during the design...
      High quality at an affordable priceExpertly made from premium materials
      $523.17 - $730.27
    • (0 reviews)
      # 841914829
      Mercury Comet A Engine VIN Character Automatic Transmission 1966, Tri-Y Long Tube Exhaust Headers by Doug's Headers®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 3". Header Style: Long Tube. This Doug's Headers product is...
      Designed to boost your vehicle's performanceMade from high-quality materials
      $549.31 - $746.03
    • (0 reviews)
      # 64827498
      Mercury Comet 4.7L 1966, Long Tube Exhaust Headers by Flowtech®. Primary Tubing Diameter: 1.5". Collector Outlet Diameter: 3". Header Material: Mild Steel. Header Style: Long Tube. Include all mounting hardware. What happens when you're...
      Mandrel-formed Power Plenum collectors for low backpressureLong transition collectors with merge spears for maximum flow and increased exhaust velocity
      $171.95 - $343.95
    • (0 reviews)
      # mpn4564003678
      Mercury Comet 4.7L 1966, Mild Steel Tri-Y Exhaust Headers by Flowtech®. Primary Tubing Diameter: 1.5". Collector Outlet Diameter: 2.5". Color: Black. Header Coating: Painted. Flowtech Headers are the perfect combination of quality and...
      Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathingHeavy duty 16-gauge tubing for increased strength and durability
      $168.95
    • (0 reviews)
      # 652211814
      Mercury Comet 4.7L 1966, Mild Steel Short Tube Exhaust Headers by Flowtech®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Header Style: Short Tube. Include all mounting hardware. Flowtech’s emissions-friendly...
      Mandrel-bent tubing for smooth exhaust flowSturdy 16 gauge tubing
      $330.95 - $440.95
    • (0 reviews)
      # 231299476
      Mercury Comet Base 4.7L C4 Transmission with Air Conditioning without Windsor Head 1966, Competition™ Long Tube Exhaust Headers by Hooker®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Collector Length: 8". Header...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      +2
      $202.95 - $568.95
    • (0 reviews)
      # 466894665
      Mercury Comet Base 1966, Super Competition™ Mild Steel Long Tube Exhaust Headers by Hooker®. Collector Outlet Diameter: 3". Collector Length: 10". Header Style: Long Tube. With Hooker Super Competition the objective has always been to...
      Tuned-length primary tubes for maximum exhaust scavenging and velocityMandrel-bent tubing for smooth exhaust flow
      +1
      $533.95 - $898.95
    • (0 reviews)
      # 898271248
      Mercury Comet 4.7L 1966, Tight Fit Short Tube Exhaust Headers by Racing Power Company®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Header Style: Short Tube. This top-grade product is expertly made in compliance...
      One-of-a-kind style will help customize your autoWill deliver unparalleled levels of durability
      +1
      $201.84 - $322.81
    • (0 reviews)
      # mpn4564018094
      Mercury Comet 1966, Demolition Derby Exhaust Headers by Schoenfeld Headers®. Primary Tubing Diameter: 1.625". This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $147.05
    • (0 reviews)
      # mpn4564002806
      Mercury Comet 4.7L with Ford Small Block Engine 1966, IMCA Modified Steel Exhaust Headers by Schoenfeld Headers®. Primary Tubing Diameter: 1.75"-1.875". Collector Outlet Diameter: 3.5". Collector Length: 9". This top-notch product by...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $298.43
    • (0 reviews)
      # mpn4564003335
      Mercury Comet 4.7L with Ford Small Block Engine 1966, Stock Clip Crossover Exhaust Headers by Schoenfeld Headers®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 3.5". This top-notch product by Schoenfeld Headers is made to...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $307.84
    • (0 reviews)
      # mpn4564010360
      Mercury Comet 4.7L with Ford Small Block Engine 1966, Stock Clip Steel Exhaust Headers by Schoenfeld Headers®. Primary Tubing Diameter: 1.75"-1.875". Collector Outlet Diameter: 3.5". Collector Length: 9". Header Coating: Painted. This...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $317.77
    • (0 reviews)
      # mpn1151262300
      Mercury Comet A / C Engine VIN Character 1966, Exhaust Manifold Gasket Set by DNJ Engine Components®. Get this top-grade quality replacement for your worn out part from DNJ. Expertly crafted from premium materials, this product is of...
      Designed to restore your vehicle's original performanceProvides superior sealing performance
      $7.96
    • (0 reviews)
      # 231299297
      Mercury Comet with Small Block Ford Engine 1966, Exhaust Header Copper Gasket by Big End Performance®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...
      Designed to boost your vehicle's performanceMade from high-quality materials
      $32.60 - $45.12
    • (0 reviews)
      # 1361736738
      Mercury Comet Base 4.7L 1966, Multi-Layer Steel Exhaust Manifold Gasket by Cometic Gasket®. Material: Multi-Layer Steel. This state-of-the-art exhaust product combines advanced materials with the most current manufacturing processes to...
      Backed by unsurpassed quality and solid workmanshipWill deliver exceptional performance you expect to get
      $35.86
    • (0 reviews)
      # mpn2505993
      Mercury Comet 6.4L / 7.0L 1966, Exhaust Gasket Set by Edelbrock®. Any gasket can create a seal, but a good gasket can do it with less clamping force, and for a longer period of time. Edelbrock's gaskets are not only manufactured from...
      The finest quality at a great priceEdelbrock carry everything needed to complete the job
      $21.35
    • (0 reviews)
      # mpn630006909
      Mercury Comet 4.7L 1966, Real-Seal™ Aluminum Exhaust Header Gaskets by Flowtech®. Material: Aluminum. Flowtech REAL-SEAL header and collector gaskets are a revolutionary break-through in exhaust sealing technology. Constructed of...
      Multi-Layer “Dead Soft” aluminum conforms to create a leak-proof sealWill not burn or blow out
      $49.33
    • (0 reviews)
      # 231299520
      Mercury Comet Base 1966, Super Competition™ Exhaust Header Gasket by Hooker®. Hooker's precision-matched Super Competition header gaskets provide a sure fit and unmatched exhaust sealing. This OEM quality gasket is constructed of a...
      Precision fit for improved sealingSteel core provides superior adhesion
      $13.79
    • (0 reviews)
      # 102132043
      Mercury Comet 1966, Exhaust Gasket Set by Mr. Gasket®. Whatever exhaust system you install on your engine, whether it's a set of chromed headers or simply a set of cleaned up flat black rams horn manifolds, you'll need gaskets and...
      Gaskets for every application, from mild to wildAluminum, copper or steel gaskets
      $18.80 - $39.99
    • (0 reviews)
      # 1022382040
      Mercury Comet 4.7L 1966, Exhaust Header Gaskets by Mr. Gasket®. Whatever exhaust system you install on your engine, whether it's a set of chromed headers or simply a set of cleaned up flat black rams horn manifolds, you'll need gaskets...
      Gaskets for every application, from mild to wildDesigned to restore functionality
      $18.08 - $33.21
    • (0 reviews)
      # 231299284
      Mercury Comet 1966, Ultra-Seal™ Exhaust Gasket Set by Mr. Gasket®. Whatever exhaust system you install on your engine, whether it’s a set of chromed headers or simply a set of cleaned up flat black rams horn manifolds, you’ll need...
      Gaskets for every application, from mild to wildAluminum, copper or steel gaskets
      $24.35 - $33.21
    • (0 reviews)
      # 652565889
      Mercury Comet 1966, Graph-Flex™ Exhaust Header Gaskets by Percy's High Performance®. These extreme high-temperature gaskets are well-suited for highly-modified engines: turbocharged, supercharged, nitrous or fuel. This is a premium,...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $21.96 - $24.44
    • (0 reviews)
      # mpn4483467848
      Mercury Comet 4.7L 1966, Graph-Flex™ Oval Dual Bolt Header Flange Gaskets by Percy's High Performance®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $24.44
    • (0 reviews)
      # 652814881
      Mercury Comet 4.7L 1966, HTR Collector Gaskets by Percy's High Performance®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality.
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $17.19 - $19.14
    • (0 reviews)
      # 652405850
      Mercury Comet 1966, Seal-4-Good™ Exhaust Header Gaskets by Percy's High Performance®. The Percy's Seal-4-Good Reusable Flange Gaskets are multi-layered and made from a special "Dead Soft" Aluminum, which conforms to header flanges for...
      Multi-layered for excellent conformability and sealSeals even imperfect flanges
      $33.89 - $34.93
    • (0 reviews)
      # mpn4483467965
      Mercury Comet 4.7L 1966, Seal-4-Good™ Oval Dual Bolt Header Flange Gaskets by Percy's High Performance®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $35.80
    • (0 reviews)
      # 652534784
      Mercury Comet 1966, XX Carbon™ Exhaust Header Gaskets by Percy's High Performance®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality. Designed...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $19.53 - $22.19
    • (0 reviews)
      # 231109207
      Mercury Comet 4.7L 1966, Header Gasket Set by ProForm®. If you're looking for a top-quality upgrade which will enhance the performance of your vehicle and won't cost you an arm and a leg, rely on this high-grade product from PROFORM....
      Designed to upgrade your ride's performanceProduced by highly specialized machines to last
      $24.58 - $29.00
    • (0 reviews)
      # 898343138
      Mercury Comet 1966, Exhaust Header Gaskets by Racing Power Company®. Made of solid, thick copper. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and...
      One-of-a-kind style will help customize your autoWill deliver unparalleled levels of durability
      $32.71 - $54.61
    • (0 reviews)
      # 482109993
      Mercury Comet 1966, Exhaust Header Gaskets by Remflex®. Remflex's unique flexible graphite material has been proven for more than 30 years in industrial applications, where temperatures routinely exceed 2,000 degrees - day after day,...
      Designed to crush 50%.This allows them to fill gaps in the flange surface up to 1/16"3,000 degrees F - far exceeding that of any vehicle's exhaust system temperature
      $23.95 - $29.81
    • (0 reviews)
      # mpn358503361
      Mercury Comet 4.7L 1966, Manifold/Header Gasket by Remflex®. Set of 2. 1-3/4" x 1-5/8" Square Port. Remflex's unique flexible graphite material has been proven for more than 30 years in industrial applications, where temperatures...
      Remflex exhaust gaskets come in a standard 1/8" thickness and are designed to crush 50%. This allows them to fill gaps in the flange surface up to 1/16"100% flexible graphite construction means Remflex gaskets are good for up to 3,000 degrees F - far exceeding that of any vehicle's exhaust system temperature
      $30.11
    • (0 reviews)
      # mpn1589347822
      Mercury Comet 2BBL 4.7L 1966, Header Gasket by RHS®. RHS offers high quality intake manifold gaskets that are constructed from a silicone-reinforced material for superb sealing characteristics. They are designed for reliable, leak-free...
      High quality at an affordable priceExpertly made from premium materials
      $43.80
    • (0 reviews)
      # mpn359115915
      Mercury Comet 4.7L with Ford Small Block Engine 1966, Round Port Exhaust Header Gasket by Schoenfeld Headers®. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $13.24
    • (0 reviews)
      # mpn1903658102
      Mercury Comet 7.0L 1966, Header Bolt Set by Mr. Gasket®. Whatever exhaust system you install on your engine, whether it’s a set of chromed headers or simply a set of cleaned up flat black rams horn manifolds, you’ll need gaskets and...
      Gaskets for every application, from mild to wildAluminum, copper or steel gaskets
      $38.70
    • (0 reviews)
      # 652581822
      Mercury Comet 1966, Vibe-Lock Header Bolt Kit by Percy's High Performance®. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the utmost care and attention to detail, this...
      Built to match your exact requirementsHigh quality you can rely on
      $59.33 - $124.82
    • (0 reviews)
      # 314940346
      Mercury Comet 1966, Header Locking Bolt Kit by Stage 8®. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and can be visually inspected; if the locking retainer and...
      Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system
      $48.05 - $69.06
    • (0 reviews)
      # mpn4561920213
      Mercury Comet 2.8L / 3.3L W/O IMCO 1966, Exhaust Manifold by ACP®. For many years ACP has been in the automobile industry and has grown to become one of the leading manufacturer/distributors of Classic Mustangs. Through the years...
      Expertly manufactured from the highest grade materialsMeticulously Tested for the ultimate in quality
      $187.15
    • (0 reviews)
      # 1141365842
      Mercury Comet 4.7L 1966, Long Tube Exhaust Header Set by Racing Power Company®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Header Style: Long Tube. This top-grade product is expertly made in compliance with...
      One-of-a-kind style will help customize your autoWill deliver unparalleled levels of durability
      $264.22 - $499.08
    • (0 reviews)
      # 781513773
      Exhaust Flanges by Kooks®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by Kooks will last a lifetime. It will meet...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $13.17 - $85.49
    • (0 reviews)
      # mpn1622044890
      Universal Brass Exhaust Manifold Hardware Kit by Dorman®. Material: Brass. Dorman's Exhaust Nuts are now available separately for exhaust manifold repairs. These direct replacement nuts are ideal for securing exhaust components and used...
      Direct replacement for a proper fit every timeHigh-quality steel and rubber materials provides years of trouble-free service
      $3.62
    • (0 reviews)
      # 1370621596
      Universal Manifold Stud by AP Exhaust®. This superior product was carefully designed with key attention to detail and manufactured from high-grade materials to the strict standards of the highest quality. This AP Exhaust Technologies...
      Made from first-rate materialsEnsures outstanding durability
      $0.29 - $0.78


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