1985 Mercury Grand Marquis Performance Headers

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    • (0 reviews)
      # mpn359116185
      Mercury Grand Marquis 5.0L 1985, 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $144.22
    • (0 reviews)
      # mpn359116201
      Mercury Grand Marquis 5.0L with Ford Small Block Engine 1985, 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $292.69
    • (0 reviews)
      # mpn359116181
      Mercury Grand Marquis 5.0L with Ford Small Block Engine 1985, 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $301.92
    • (0 reviews)
      # mpn359116194
      Mercury Grand Marquis 5.0L with Ford Small Block Engine 1985, Stock Clip Steel Painted Exhaust Headers by Schoenfeld Headers®. Primary Tubing Diameter: 1.75"-1.875". Collector Outlet Diameter: 3.5". Collector Length: 9". Finish:...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $285.56
    • (0 reviews)
      # 898294467
      Mercury Grand Marquis 5.0L 1985, Header Set by Racing Power Company®. Tube Diameter: 1-5/8". Includes gaskets, hardware, and reducers. This top-grade product is expertly made in compliance with stringent industry standards to offer a...
      One-of-a-kind style will help customize your autoWill deliver unparalleled levels of durability
      +1
      $197.96 - $489.48
    • (0 reviews)
      # mpn630006909
      Mercury Grand Marquis 5.0L 1985, 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)
      # 332915537
      Mercury Grand Marquis 5.0L 1985, 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)
      # 102218728
      Mercury Grand Marquis 5.0L 1985, 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
      $18.36 - $39.05
    • (0 reviews)
      # mpn1553396
      Mercury Grand Marquis 5.0L 1985, Ultra-Seal Exhaust Header Gasket 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
      $32.43
    • (0 reviews)
      # 231292217
      Mercury Grand Marquis 5.0L 1985, 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 - $30.27
    • (0 reviews)
      # 564785734
      Mercury Grand Marquis 1985, 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 needs...
      Backed by unsurpassed quality and solid workmanshipWill deliver exceptional performance you expect to get
      $21.45 - $35.86
    • (0 reviews)
      # 652614865
      Mercury Grand Marquis 5.0L 1985, 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...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $21.54
    • (0 reviews)
      # mpn4483467848
      Mercury Grand Marquis 5.0L 1985, 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $23.97
    • (0 reviews)
      # 652835847
      Mercury Grand Marquis 5.0L 1985, 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
      $16.86 - $18.77
    • (0 reviews)
      # 378669930
      Mercury Grand Marquis 5.0L 1985, 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...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $33.24 - $34.26
    • (0 reviews)
      # mpn4483467965
      Mercury Grand Marquis 5.0L 1985, 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $35.11
    • (0 reviews)
      # 378669933
      Mercury Grand Marquis 5.0L 1985, 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 to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $20.18 - $21.77
    • (0 reviews)
      # 231101284
      Mercury Grand Marquis 5.0L 1985, 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...
      Designed to upgrade your ride's performanceProduced by highly specialized machines to last
      $28.44
    • (0 reviews)
      # mpn359115915
      Mercury Grand Marquis 5.0L with Ford Small Block Engine 1985, 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...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $12.98
    • (0 reviews)
      # mpn474702203
      Mercury Grand Marquis 5.0L with Small Block Ford Engine 1985, 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...
      Designed to boost your vehicle's performanceMade from high-quality materials
      $34.05
    • (0 reviews)
      # mpn4498739433
      Mercury Grand Marquis 5.0L 1985, Header Gaskets by Racing Power Company®. Port Oval 1.25" x 1.75". 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
      $32.08
    • (0 reviews)
      # 652249850
      Mercury Grand Marquis 5.0L 1985, 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
      $87.36 - $101.07
    • (0 reviews)
      # mpn2072441809
      Mercury Grand Marquis 5.0L 1985, Cast Iron Natural Exhaust Manifold by Dorman®. Position: Passenger Side. Emissions: CARB compliant. Finish: Natural. Since this part is a direct replacement, the exact fit adds another layer of...
      $103.95
    • (0 reviews)
      # mpn4476976533
      Mercury Grand Marquis 1985, Exhaust Manifold Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the...
      Direct OEM replacement for a proper fitEnsures reliable sealing performance
      $10.17
    • (0 reviews)
      # mpn603881
      Mercury Grand Marquis 1985, Composite Exhaust Manifold Gasket Set by Victor Reinz®. Material: Composite. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...
      High quality at an affordable priceExpertly made from premium materials
      $9.28
    • (0 reviews)
      # mpn1143023943
      Mercury Grand Marquis 5.0L 1985, Exhaust Manifold Gasket Set by Apex Auto®. Apex products, at present, cover the engine gaskets, seals and head bolts for full coverage of Domestic, Japanese, Korean and popular Eurpoean applications, and...
      Quick accurate delivery with excellent fill-rateExcellent inventory availability
      $6.60
    • (0 reviews)
      # mpn1143020695
      Mercury Grand Marquis 5.0L 1985, Exhaust Pipe Flange Gasket by Apex Auto®. Apex products, at present, cover the engine gaskets, seals and head bolts for full coverage of Domestic, Japanese, Korean and popular Eurpoean applications, and...
      Quick accurate delivery with excellent fill-rateExcellent inventory availability
      $1.66
    • (0 reviews)
      # mpn1151262300
      Mercury Grand Marquis 5.0L 1985, 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)
      # 276283994
      Mercury Grand Marquis 5.0L 1985, 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
      $6.44 - $8.68
    • (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





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