1978 Mercury Grand Marquis Performance Headers

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    • (0 reviews)
      # mpn359116179
      Mercury Grand Marquis 5.8L Windsor Engine with Ford Small Block Engine 1978, IMCA Modified Steel Painted Long Tube Exhaust Headers by Schoenfeld Headers®. Primary Tubing Diameter: 1.75". Collector Length: 8". Finish: Painted. Header...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $271.78
    • (0 reviews)
      # mpn359116180
      Mercury Grand Marquis 5.8L Windsor Engine with Ford Small Block Engine 1978, Stock Clip Crossover Exhaust Headers by Schoenfeld Headers®. Primary Tubing Diameter: 1.625". This top-notch product by Schoenfeld Headers is made to give that...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $267.71
    • (0 reviews)
      # mpn630006909
      Mercury Grand Marquis 5.8L 1978, Real-Seal™ Aluminum Exhaust Header Gaskets by Flowtech®. 1 Pair. Material: Aluminum. Flowtech REAL-SEAL header and collector gaskets are a revolutionary break-through in exhaust sealing technology....
      Multi-Layer “Dead Soft” aluminum conforms to create a leak-proof sealWill not burn or blow out
      $48.17
    • (0 reviews)
      # 381739208
      Mercury Grand Marquis 5.8L 1978, 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...
      Precision fit for improved sealingSteel core provides superior adhesion
      $13.47 - $14.61
    • (0 reviews)
      # 102133820
      Mercury Grand Marquis 1978, 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...
      Gaskets for every application, from mild to wildAluminum, copper or steel gaskets
      $18.36 - $39.05
    • (0 reviews)
      # 231291859
      Mercury Grand Marquis 1978, 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,...
      Gaskets for every application, from mild to wildAluminum, copper or steel gaskets
      $23.77 - $33.52
    • (0 reviews)
      # 564953712
      Mercury Grand Marquis 5.8L 1978, Exhaust Manifold Gasket by Cometic Gasket®. This state-of-the-art exhaust product combines advanced materials with the most current manufacturing processes to provide custom-tailored solutions for your...
      Backed by unsurpassed quality and solid workmanshipWill deliver exceptional performance you expect to get
      $21.45 - $35.86
    • (0 reviews)
      # mpn358507493
      Mercury Grand Marquis 7.5L 1978, Multi-Layer Steel Exhaust Header Gasket by Cometic Gasket®. Material: Multi-Layer Steel. Exhaust Gaskets are designed for extreme cylinder pressures. MLS Exhaust Manifold Gaskets maintain a torque set...
      Made of High Quality MaterialsBuilt to Last
      $39.64
    • (0 reviews)
      # mpn358950084
      Mercury Grand Marquis 7.5L with Big Block Ford Engine 1978, Oval Port Header Flange Kit by Patriot Exhaust®. Header Flange made from Steel. Patriot Exhaust's machined header flange kits are available for many popular engine families. 1...
      Precision machined flangeBuilt of High quality materials
      $49.48
    • (0 reviews)
      # 652396819
      Mercury Grand Marquis 1978, 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...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $23.97
    • (0 reviews)
      # 652252835
      Mercury Grand Marquis 7.5L 1978, 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $18.77
    • (0 reviews)
      # 652356897
      Mercury Grand Marquis 1978, 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...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $33.24 - $35.11
    • (0 reviews)
      # 652524781
      Mercury Grand Marquis 1978, XX Carbon™ 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...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $21.77
    • (0 reviews)
      # 262495996
      Mercury Grand Marquis 1978, Exhaust Header Gasket 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...
      $24.31 - $35.19
    • (0 reviews)
      # 231291813
      Mercury Grand Marquis 1978, 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 customers in mind. It...
      Designed to boost your vehicle's performanceMade from high-quality materials
      $44.25
    • (0 reviews)
      # mpn4498739779
      Mercury Grand Marquis 7.5L 1978, Header Gaskets by Racing Power Company®. Port Rectangle 1.25" x 2.08". Made of solid, thick copper.040" Thickness. 2 Pieces. This top-grade product is expertly made in compliance with stringent industry...
      One-of-a-kind style will help customize your autoWill deliver unparalleled levels of durability
      $37.66
    • (0 reviews)
      # 652586848
      Mercury Grand Marquis 7.5L 1978, 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...
      Built to match your exact requirementsHigh quality you can rely on
      $74.26 - $101.07
    • (0 reviews)
      # 314942325
      Mercury Grand Marquis 6.6L / 7.5L 1978, 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...
      High quality at an affordable priceExpertly made from premium materials
      $20.40 - $70.44
    • (0 reviews)
      # mpn358727069
      Mercury Grand Marquis 7.5L with Big Block Ford Engine 1978, Standard Head Exhaust Header Bolts by Trans-Dapt®. This Trans-Dapt product is just the option for you in case you want to get the most out of your auto. It is made from...
      $6.77
    • (0 reviews)
      # mpn2072494763
      Mercury Grand Marquis 5.8L / 6.6L 1978, Cast Iron Natural Exhaust Manifold by Dorman®. Position: Driver Side. Emissions: CARB compliant. Finish: Natural. This product is made of high-quality materials to serve you for years to come....
      High Quality tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $93.95
    • (0 reviews)
      # mpn1143023943
      Mercury Grand Marquis 5.8L Windsor Engine 1978, Exhaust Manifold Gasket Set by Apex Auto®. Designed utilizing the latest technology, this product by Apex Auto features premium quality and will perform better than advertised. Perfect for...
      Quick accurate delivery with excellent fill-rateExcellent inventory availability
      $5.84
    • (0 reviews)
      # mpn1151262300
      Mercury Grand Marquis 5.8L 1978, 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 the finest...
      Designed to restore your vehicle's original performanceProvides superior sealing performance
      $7.80
    • (0 reviews)
      # 276283979
      Mercury Grand Marquis 5.8L / 6.6L 1978, Metal Exhaust Manifold Hardware Kit by Dorman®. Material: Metal. Dorman manifold bolt and spring kits are just what you need to secure the front flange. Dorman offers products like fasteners and...
      Direct replacement for a proper fitBuilt to Last
      $6.97 - $9.80
    • (0 reviews)
      # 1022522110
      Mercury Grand Marquis 1978, Graphite Exhaust Manifold Gasket Set by Victor Reinz®. High Performance Gasket Material: Graphite. This product is made of high-quality materials to serve you for years to come. Designed using...
      High quality at an affordable priceExpertly made from premium materials
      $21.23 - $22.55
    • (0 reviews)
      # 1022159046
      Exhaust Header by Schoenfeld Headers®. This top-notch product by Schoenfeld Headers is made to give that extra boost that every driver appreciates. This product is designed with utmost care and meticulous attention to detail to...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $139.75 - $548.31
    • (0 reviews)
      # 659607306
      1625 Series 1-5/8" Outer Diameter Exhaust Modeling Block Basic Kit by Icengineworks®. Quantity: 124 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $419.99
    • (0 reviews)
      # 659607273
      1625 Series 1-5/8" Outer Diameter Exhaust Modeling Block Basic Plus Kit by Icengineworks®. Including 1625BASIC and 1625TTWCS. Quantity: 128 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $499.99
    • (0 reviews)
      # 659607249
      1625 Series 1-5/8" Outer Diameter Exhaust Modeling Block Pro Kit by Icengineworks®. Quantity: 248 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $774.99
    • (0 reviews)
      # 659607225
      1625 Series 1-5/8" Outer Diameter Exhaust Modeling Block Pro Plus Kit by Icengineworks®. Including 1625PRO and 1625TTWCS. Quantity: 252 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $874.99
    • (0 reviews)
      # 659607333
      1625 Series 1-5/8" Outer Diameter Exhaust Tube-Cutting Tool System by Icengineworks®. Including PIV1000 and 1625CSS. Quantity: 4 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $599.99
    • (0 reviews)
      # 659607440
      1625 Series 1-5/8" Outer Diameter Modeling Exhaust Full System Kit by Icengineworks®. Including 1625PRO, PIV1000, 1625CSS, 1625TTWCS. Quantity: 256 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects....
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $1,399.99
    • (0 reviews)
      # 659607293
      1750 Series 1-3/4" Outer Diameter Exhaust Modeling Block Basic Kit by Icengineworks®. Quantity: 154 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $419.99
    • (0 reviews)
      # 659607337
      1750 Series 1-3/4" Outer Diameter Exhaust Modeling Block Basic Plus Kit by Icengineworks®. Including 1750BASIC and 1750TTWCS. Quantity: 158 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $499.99
    • (0 reviews)
      # 659607207
      1750 Series 1-3/4" Outer Diameter Exhaust Modeling Block Pro Kit by Icengineworks®. Quantity: 308 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $774.99
    • (0 reviews)
      # 659607395
      1750 Series 1-3/4" Outer Diameter Exhaust Modeling Block Pro Plus Kit by Icengineworks®. Including 1750PRO and 1750TTWCS. Quantity: 312 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $874.99
    • (0 reviews)
      # 659607401
      1750 Series 1-3/4" Outer Diameter Exhaust Tube-Cutting Tool System by Icengineworks®. Including PIV1000 and 1750CSS. Quantity: 5 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $699.99
    • (0 reviews)
      # 659607387
      1750 Series 1-3/4" Outer Diameter Modeling Exhaust Full System Kit by Icengineworks®. Including 1750PRO, PIV1000, 1750CSS, 1750TTWCS. Quantity: 317 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects....
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $1,499.99
    • (0 reviews)
      # 659607419
      1875 Series 1-7/8" Outer Diameter Exhaust Tube-Cutting Tool System by Icengineworks®. Including PIV1000 and 1875CSS. Quantity: 5 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $749.99
    • (0 reviews)
      # 659607451
      2000 Series 2" Outer Diameter Exhaust Modeling Block Basic Kit by Icengineworks®. Quantity: 124 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $419.99
    • (0 reviews)
      # 659607284
      2000 Series 2" Outer Diameter Exhaust Modeling Block Basic Plus Kit by Icengineworks®. Including 2000BASIC and 2000TTWCS. Quantity: 128 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $499.99
    • (0 reviews)
      # 659607383
      2000 Series 2" Outer Diameter Exhaust Modeling Block Pro Kit by Icengineworks®. Quantity: 248 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $799.99
    • (0 reviews)
      # 659607374
      2000 Series 2" Outer Diameter Exhaust Modeling Block Pro Plus Kit by Icengineworks®. Including 2000PRO and 2000TTWCS. Quantity: 252 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $874.99
    • (0 reviews)
      # 659607412
      2000 Series 2" Outer Diameter Exhaust Tube-Cutting Tool System by Icengineworks®. Including PIV1000 and 2000CSS. Quantity: 4 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $649.99
    • (0 reviews)
      # 659607425
      2000 Series 2" Outer Diameter Modeling Exhaust Full System Kit by Icengineworks®. Including 2000PRO, PIV1000, 2000CSS, 2000TTWCS. Quantity: 256 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects....
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $1,499.99
    • (0 reviews)
      # 659607410
      1625 Series 1-5/8" Outer Diameter Exhaust Collector Dummy by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending machines,...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $119.99 - $199.99
    • (0 reviews)
      # 659607447
      1625 Series 1-5/8" Outer Diameter Exhaust Modeling Block Set by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending machines,...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $149.99 - $199.99
    • (0 reviews)
      # mpn4483950933
      1625 Series 1-5/8" Outer Diameter Exhaust Modeling Block/Starter Tube Adapter by Icengineworks®. Quantity: 1 Piece. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $15.99
    • (0 reviews)
      # mpn4483950934
      1625 Series 1-5/8" Outer Diameter Exhaust Tack Welding Clamp Set by Icengineworks®. Material: Stainless Steel. Quantity: 4 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $104.99
    • (0 reviews)
      # 659607407
      1625 Series Exhaust HDPE Tube-Cutting Spacer by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending machines, fabricators are...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $79.99 - $299.99
    • (0 reviews)
      # 659607369
      1750 Series 1-3/4" Outer Diameter Exhaust Collector Dummy by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending machines,...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $119.99 - $199.99
    • (0 reviews)
      # 659607430
      1750 Series 1-3/4" Outer Diameter Exhaust Modeling Block Set by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending machines,...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $149.99 - $199.99
    • (0 reviews)
      # mpn4483950926
      1750 Series 1-3/4" Outer Diameter Exhaust Modeling Block/Starter Tube Adapter by Icengineworks®. Quantity: 1 Piece. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $15.99
    • (0 reviews)
      # mpn4483950963
      1750 Series 1-3/4" Outer Diameter Exhaust Tack Welding Clamp Set by Icengineworks®. Material: Stainless Steel. Quantity: 4 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $104.99
    • (0 reviews)
      # 659607445
      1875 Series 1-7/8" Outer Diameter 4-into-1 Exhaust Collector Dummy by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $124.99 - $199.99
    • (0 reviews)
      # mpn4483950960
      1875 Series 1-7/8" Outer Diameter Exhaust Tack Welding Clamp Set by Icengineworks®. Material: Stainless Steel. Quantity: 4 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $104.99
    • (0 reviews)
      # 659607355
      1875 Series Exhaust HDPE Tube-Cutting Spacer by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending machines, fabricators are...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $79.99 - $449.99
    • (0 reviews)
      # 659607418
      2000 Series 2" Outer Diameter 4-into-1 Exhaust Collector Dummy by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $124.99 - $199.99
    • (0 reviews)
      # 659607453
      2000 Series 2" Outer Diameter Exhaust Modeling Block Set by Icengineworks®. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized nature of mandrel bending machines,...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $149.99 - $199.99
    • (0 reviews)
      # mpn4483950967
      2000 Series 2" Outer Diameter Exhaust Modeling Block/Starter Tube Adapter by Icengineworks®. Quantity: 1 Piece. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and specialized...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $15.99
    • (0 reviews)
      # mpn4483950935
      2000 Series 2" Outer Diameter Exhaust Tack Welding Clamp Set by Icengineworks®. Material: Stainless Steel. Quantity: 4 Pieces. Exhaust headers and turbo manifolds can be time consuming and tedious projects. Because of the high cost and...
      Made from high quality materials for ultimate qualityDesigned to get the most out of your exhaust system
      $109.99





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