1974 Mercury Marquis Valves & Valvetrain Parts
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Enginetech®Engine ValveMercury Marquis 1974, Engine Valve by Enginetech®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$3.30 - $419.49 - QualCast®Engine ValveMercury Marquis 1974, Engine Valve by QualCast®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a...Made from high-strength materials for uncompromising durabilityDesigned to provide an excellent combination of price and quality$5.55 - $27.52
- Sealed Power®Valve LifterMercury Marquis 1974, Valve Lifter by Sealed Power®. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...OE replacementHigh strength steel retainer (precisely limits plunger travel to perform at rpm operation)$4.19 - $8.70
- Fel-Pro®Valve Stem Oil Seal SetMercury Marquis 1974, Valve Stem Oil Seal 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 gaskets...Direct OEM replacement for a proper fitEnsures reliable sealing performance$8.17 - $13.31
- Pioneer Automotive®Rubber Valve Stem Seal SetMercury Marquis A / S Engine VIN Character 1974, Rubber Valve Stem Seal Set by Pioneer Automotive®. Designed utilizing the latest technology, this product by Pioneer Automotive features premium quality and will perform better than...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$32.21
- DNJ Engine Components®Non-Roller Valve LifterMercury Marquis 7.5L 1974, Non-Roller Valve Lifter by DNJ Engine Components®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and...Designed to replace your malfunctioning partsHelps get your vehicle back to it's original performance$6.44
- COMP Cams®Hi-Tech™ Push RodMercury Marquis 1974, Hi-Tech™ Push Rod by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and knowledgeable engineering...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$16.95 - $244.95
- COMP Cams®High Energy™ Push RodMercury Marquis 1974, High Energy™ Push Rod by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and knowledgeable...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$7.95 - $75.95
- COMP Cams®High Energy™ Rocker ArmMercury Marquis 7.5L 1974, High Energy™ Rocker Arm by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and knowledgeable...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$18.95 - $257.95
- COMP Cams®Sportsman™ Solid Roller LiftersMercury Marquis 6.6L / 7.5L 1974, Sportsman™ Solid Roller Lifters by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$814.95 - $1,175.95
- COMP Cams®Ultra Pro Magnum™ Rocker ArmMercury Marquis 1974, Ultra Pro Magnum™ Rocker Arm by COMP Cams®. Ultra Pro Magnum™ Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnums™, but they also take stud mount rocker performance,...Investment cast 8650 chromemoly body and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia. Unique black oxide exterior finish helps prevent corrosion and increases durability.Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues.$42.95 - $453.95
- QualCast®Valve GuideMercury Marquis 1974, Valve Guide by QualCast®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a...Made from high-strength materials for uncompromising durabilityDesigned to provide an excellent combination of price and quality$2.07 - $2.13
- QualCast®Valve Spring Retainer KeeperMercury Marquis 5.8L / 6.6L 1974, Valve Spring Retainer Keeper by QualCast®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and...$1.37
- Sealed Power®Valve Spring Retainer KeeperMercury Marquis 5.8L / 7.5L 1974, Valve Spring Retainer Keeper by Sealed Power®. Designed utilizing the latest technology, this product by Sealed Power features premium quality and will perform better than advertised. Perfect for your...Direct replacementManufactured to strict engineering quality standards$0.26
- Apex Auto®Valve Stem Seal SetMercury Marquis 5.8L 1974, Valve Stem Seal Set by Apex Auto®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed...Made with precision and quality in mindDesigned to meet your specific needs$11.67
- Enginetech®Engine Valve GuideMercury Marquis 1974, Engine Valve Guide by Enginetech®. The Engine Builder's Source, can locate the right part for nearly any rebuild application. Offering a full line of internal engine parts for domestic, import and high performance...Rigorously tested to withstand years of abuseDesigned with innovative manufacturing techniques$3.91 - $97.76
- Enginetech®Premium Positive Valve SealsMercury Marquis 1974, Premium Positive Valve Seals by Enginetech®. The Engine Builder's Source, can locate the right part for nearly any rebuild application. Offering a full line of internal engine parts for domestic, import and high...Rigorously tested to withstand years of abuseDesigned with innovative manufacturing techniques$14.07 - $15.23
- Enginetech®Valve SeatsMercury Marquis 1974, Valve Seats by Enginetech®. The Engine Builder's Source, can locate the right part for nearly any rebuild application. Offering a full line of internal engine parts for domestic, import and high performance...Rigorously tested to withstand years of abuseDesigned with innovative manufacturing techniques$7.49 - $35.73
- Pioneer Automotive®Rocker Arm KitMercury Marquis 1974, Rocker Arm Kit by Pioneer Automotive®. Designed utilizing the latest technology, this product by Pioneer Automotive features premium quality and will perform better than advertised. Perfect for your vehicle and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$13.19 - $30.87
- Pioneer Automotive®Rocker Arm StudMercury Marquis 6.6L / 7.5L 1974, Rocker Arm Stud by Pioneer Automotive®. Designed utilizing the latest technology, this product by Pioneer Automotive features premium quality and will perform better than advertised. Perfect for your...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$9.61 - $92.85
- Pioneer Automotive®Valve Keeper KitMercury Marquis A / S Engine VIN Character 1974, Valve Keeper Kit by Pioneer Automotive®. Designed utilizing the latest technology, this product by Pioneer Automotive features premium quality and will perform better than advertised....Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$20.67 - $36.11
- Victor Reinz®Valve Stem Oil Seal SetMercury Marquis 1974, Valve Stem Oil Seal Set by Victor Reinz®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It...Made with precision and quality in mindDesigned to meet your specific needs$7.40 - $17.23
- COMP Cams®Endure-X™ Solid Roller LifterMercury Marquis Base / Brougham 1974, Endure-X™ Solid Roller Lifter by COMP Cams®. Today's engines place a greater demand on lifters than ever before. With today’s more aggressive cam lobe designs and increased rpm ranges, it takes...Removable Link Bar - COMP Cams patented link bar assembly combines the benefits of a removable link bar with the safety of a captured link barEDM Oil Injection™ Technology - guarantees that the bearing assembly receives a constant fl ow of pressurized oil via a precision hole aimed directly at the needle bearings$81.79 - $711.95
- COMP Cams®Hi-Tech™ Drag Race Valve SpringMercury Marquis Base / Brougham 7.5L 1974, Hi-Tech™ Drag Race Valve Spring by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$46.95 - $484.95
- COMP Cams®Hi-Tech™ Oval Track Valve SpringMercury Marquis 7.5L 1974, Hi-Tech™ Oval Track Valve Spring by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$44.95 - $465.95
- COMP Cams®High Energy™ Valve LifterMercury Marquis 1974, High Energy™ Valve Lifter by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and knowledgeable...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$13.95 - $114.95
- COMP Cams®Magnum™ Push RodMercury Marquis Base 6.6L 1974, Magnum™ Push Rod by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and knowledgeable...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$14.95 - $146.95
- COMP Cams®Performance Series™ Valve LifterMercury Marquis 1974, Performance Series™ Valve Lifter by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and knowledgeable...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$29.95 - $288.95
- COMP Cams®Pro Magnum™ Valve LifterMercury Marquis Base / Brougham 5.8L 1974, Pro Magnum™ Valve Lifter by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$14.95 - $140.95
- COMP Cams®Push Rod Guide PlateMercury Marquis Base / Brougham 7.5L 1974, Push Rod Guide Plate by COMP Cams®. This high-grade product was designed with craftsmanship and key attention to detail and manufactured using leading-edge innovations by experienced and...Developed to provide steady performance and reliabilityMade using up-to-date equipment and new technologies$12.95 - $60.95
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