1978 Mercury Grand Marquis Valve Cover and Cylinder Heads

Essential 1978 Mercury Grand Marquis Valve Cover and Cylinder Heads

Felpro – Engine Cylinder Head Bolt Set (Part No.ES 71328)

Engine Cylinder Head Bolt Set

from

$56.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Avoid risk associated with re-use of T-T-Y (torque to yield) head bolts
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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Edelbrock – RPM Small-Block Ford 1.90" Cylinder Head Hydraulic Flat Tappet Cam (Part No.60229)

RPM Small-Block Ford 1.90" Cylinder Head Hydraulic Flat Tappet Cam

from

$973.99
The Edelbrock #60229 Performer RPM cylinder head is designed for use with 289-351W c.i.d. Small-Block Ford applications. The Edelbrock #60229 Performer RPM head is perfect for street performance, daily drivers, street rods and muscle cars where seat-of-th

Product Features:
  • Out-of-the-Box Bolt-On Performance
  • Maximum Performance From Idle through Mid-Range
  • Intake Valves Are For Use w/Stock Pistons
  • Designed For Non-Emissions
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Sealed Power – Engine Rocker Arm Kit (Part No.R-879)

Engine Rocker Arm Kit

from

$18.79
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Complete rocker arm assembly
  • 1 Arm
  • 1 Pivot
  • Stamped steel
  • Bolt type mount
  • Utilizes ISO & QS certified manufacturing
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Sealed Power – Engine Rocker Arm Ball Stud (Part No.MR-1847)

Engine Rocker Arm Ball Stud

from

$1.49
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
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Spectre – Valve Cover (Part No.5018)

Valve Cover

from

$249.99
Available in various sizes, heights, and finishes, Spectre offers a wide variety of high performance valve covers designed to easily replace your stock covers. Designed for Ford Small Block 260-289-302-351W, this valve cover features polished aluminum construction and a smooth design. Sold in pairs, this tall profile cover includes baffles to provide optimum function. With show quality construction and a sealing edge designed for an ideal fit, our valve covers are engineered to look great for applications ranging from custom builds to replacing stock equipment.

Product Features:
  • Designed for Ford Small Block 260-289-302-351W engines
  • Baffled for breather system compatibility
  • Sold in pairs
  • Polished aluminum construction
  • Tall profile
  • Features OEM style sealing edge
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Spectre – Valve Cover (Part No.5263)

Valve Cover

from

$89.99
Available in various sizes, heights, and finishes, Spectre offers a wide variety of high performance valve covers designed to easily replace your stock covers. Designed for Ford 351C-351M-400-BoSS 302 engines, this valve cover features chrome-plated steel construction and a smooth design. Sold in pairs, this stock profile cover is baffled to provide optimum function. With show quality construction and a sealing edge designed for an ideal fit, our valve covers are engineered to look great for applications ranging from custom builds to replacing stock equipment.

Product Features:
  • Designed for Ford 351C-351M-400-BoSS 302 engines
  • Baffled for breather system compatibility
  • Sold in pairs
  • Triple chrome-plated steel construction
  • Stock height
  • Features OEM style sealing edge
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Sealed Power – Engine Push Rod (Part No.RP-3241)

Engine Push Rod

from

$2.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
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Sealed Power – Engine Push Rod (Part No.RP-3209)

Engine Push Rod

from

$2.49
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • State-of-the-art manufacturing
  • Exceptional material quality
  • Exacting tolerances
  • Heat treated tips
  • Stock or mild modified replacement
  • Made in USA
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Edelbrock – Sure Seat Valve Springs (Part No.5825)

Sure Seat Valve Springs

from

$147.99
The Edelbrock #5825 Replacement Sure Seat Valve Spring for Edelbrock #5085, 60759, 60909, 60719, 60739, 60999, 60899 & 79899 cylinder heads are made of highest quality spring wire and precision wound to close tolerances.

Product Features:
  • Non-Rotator Type
  • 1.460 in. Outer Diameter
  • Made In The USA
  • Single Coil Spring Type
  • Set of 16
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Edelbrock – Sure Seat Valve Springs for cylinder (Part No.5821)

Sure Seat Valve Springs for cylinder

from

$198.99
Product Features:
  • Non-Rotator Type
  • 1.540 in. Outer Diameter
  • 0.760 in. Inner Diameter
  • 0.760 in. Coil Blind
  • Set of 16
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Dorman – Rubber Expansion Plug 1-1/2 In. – Size Range 1-1/2 In. – 1-5/8 In. (sold by each) (Part No.570-009)

Rubber Expansion Plug 1-1/2 In. - Size Range 1-1/2 In. - 1-5/8 In. (sold by each)

from

$8.49
This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models.
  • Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Edelbrock – Performer RPM Hydraulic Flat Tappet Lifters (Part No.9705)

Performer RPM Hydraulic Flat Tappet Lifters

from

$201.99
Product Features:
  • Hydraulic Flat Tappet Lifter
  • Steel Material
  • 0.874 in. Outside Diameter
  • Set of 16
  • Performer RPM Series
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Sealed Power – Engine Valve Lifter (Part No.HT-2271)

Engine Valve Lifter

from

$10.49
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Unsurpassed quality that you can trust
  • Uses leading edge materials
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
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Competition Cams – SUPER VALVE LOCKS, 3/8" 1 ST (Part No.612-16)

SUPER VALVE LOCKS, 3/8" 1 ST

from

$553.99
Inside tang-to-taper relationship held tightly for repeatable valve spring installed heights

Product Features:
  • For simplicity, any Super Lock fits any COMP Cams 10° retainer – just choose the correct lock for you valve size and application
  • Super Locks are recommended in all race applications
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Sealed Power – Engine Valve Spring Retainer Keeper (Part No.VK-115)

Engine Valve Spring Retainer Keeper

from

$0.43
Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Unsurpassed quality that you can trust
  • Uses leading edge materials
  • State-of-the-art manufacturing
  • Exacting tolerances
  • Meets or exceeds OEM specifications
See More

Edelbrock – Performer Series Retainer (Qty 16) (Part No.9733)

Performer Series Retainer (Qty 16)

from

$134.99
Product Features:
  • Use W/ Valve Springs Part #5722, 5796
  • Set of 16
  • 1.50 in. Outside Diameter
  • Steel Material
  • Black Oxide Finish
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Mahle – Mahle Cylinder Head Gasket (Part No.A8100331394MAH)

Mahle Cylinder Head Gasket

from

$85.96
Mahle is the largest gasket manufacturer in the world, providing you original equipment design and quality and world class aftermarket service. Mahle does not just cut gaskets – it designs total system sealing approaches that utilize application engineering. This means that regardless of what application you are trying to seal, you can count on Mahle doing the research and testing to provide the optimum material and technology for that specific application – this systems sealing approach requires a variety of materials. No other gasket manufacturer offers the Application Engineered approach to sealing an engine. A variety of different gasket materials insure an engine gets the optimal seal. All gaskets are not created equal – Mahle gaskets prove it every day.

Product Features:
  • Original equipment design and quality
  • Head gaskets give you original equipment form, fit, and function
  • Utilizes OE equivalent or better materials
  • Packaged in shrink wrapped tray
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Felpro – Cylinder Head Gasket: Composite, Without Head Bolts (Part No.8265 PT-1)

Cylinder Head Gasket: Composite, Without Head Bolts

from

$27.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • PROPRIETARY COATING — Nonstick anti-friction coating seals small surface scratches and imperfections
  • SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • NO RETORQUE DESIGN — Steel core helps eliminate the need for retorquing head bolts
  • STRONG AND DURABLE — Features graphite or reinforced fiber facing material and steel armor for strength and durability
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
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Sealed Power – Engine Exhaust Valve (Part No.V-1961)

Engine Exhaust Valve

from

$8.49
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
See More

Sealed Power – Engine Exhaust Valve (Part No.V-4603)

Engine Exhaust Valve

from

$16.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
See More

Sealed Power – Engine Rocker Arm Nut (Part No.MR-1823)

Engine Rocker Arm Nut

from

$0.72
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
See More

Sealed Power – Engine Rocker Arm Nut (Part No.MR-1751)

Engine Rocker Arm Nut

from

$0.95
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
See More

Felpro – Cylinder Head Gasket Set (Part No.HS 9792 PT-6)

Cylinder Head Gasket Set

from

$239.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • PROPRIETARY COATING — Nonstick anti-friction coating seals small surface scratches and imperfections
  • SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • NO RETORQUE DESIGN — Steel core helps eliminate the need for retorquing head bolts
  • STRONG AND DURABLE — Features graphite or reinforced fiber facing material and steel armor for strength and durability
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
See More

Felpro – Cylinder Head Gasket Set (Part No.HS 8548 PT-11)

Cylinder Head Gasket Set

from

$77.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • PROPRIETARY COATING — Nonstick anti-friction coating seals small surface scratches and imperfections
  • SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • NO RETORQUE DESIGN — Steel core helps eliminate the need for retorquing head bolts
  • STRONG AND DURABLE — Features graphite or reinforced fiber facing material and steel armor for strength and durability
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
See More

Mahle – Cylinder Head Gasket Set (Part No.A8010930998MAH)

Cylinder Head Gasket Set

from

$367.40
WARNING: This item cannot be returned for a replacement or refund if opened! Mahle is the largest gasket manufacturer in the world, providing you original equipment design and quality and world class aftermarket service. Mahle does not just cut gaskets – it designs total system sealing approaches that utilize application engineering. This means that regardless of what application you are trying to seal, you can count on Mahle doing the research and testing to provide the optimum material and technology for that specific application – this systems sealing approach requires a variety of materials. No other gasket manufacturer offers the Application Engineered approach to sealing an engine. A variety of different gasket materials insure an engine gets the optimal seal. All gaskets are not created equal – Mahle gaskets prove it every day.

Product Features:
  • Original equipment design and quality
  • Head sets give you original equipment form, fit, and function
  • Utilizes OE equivalent or better materials in all head sets
  • Packaged in shrink wrapped tray
  • Every part you need to complete your gasket repair in one package unless otherwise stated
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Dorman – Pipe Plug C.S. Hex 3/4-14 Npt X 5/8 In. (sold by each) (Part No.090-072)

Pipe Plug C.S. Hex 3/4-14 Npt X 5/8 In. (sold by each)

from

$3.49
This engine cylinder head plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine cylinder head plug matches the fit and function of the factory part on specified years, makes and models.
  • Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

Dorman – Pipe Plug C.S. Square 3/8-18 Npt, Head Size 5/16 In. (sold by each) (Part No.090-019)

Pipe Plug C.S. Square 3/8-18 Npt, Head Size 5/16 In. (sold by each)

from

$2.99
This engine cylinder head plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine cylinder head plug matches the fit and function of the factory part on specified years, makes and models.
  • Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

1978 Mercury Grand Marquis Valve Cover and Cylinder Heads

Maybe you’re in the middle of a full rebuild of that 1978 Mercury Grand Marquis. Maybe you just need a couple of Valve Cover and Cylinder Heads. Either way, Advance Auto Parts has 51 different Valve Cover and Cylinder Heads in our inventory ranging from $0.43 to $1,606.99. That means you can find the exact parts or products you need to keep that 1978 Mercury Grand Marquis running smoothly.

Valve Cover and Cylinder Heads are only as good as their brand. We stock 7 different brands to make sure you have plenty of trusted parts to choose from for your 1978 Mercury Grand Marquis. Sealed Power, FELPRO, and Dorman are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Valve Cover and Cylinder Heads for your 1978 Mercury Grand Marquis, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 72 reviews in this category, some of the top rated parts include Engine Valve Spring Retainer Keeper with 5.0 stars and Engine Rocker Arm Nut with 3.0 stars.

So if you’re in the market for aftermarket Valve Cover and Cylinder Heads to keep your 1978 Mercury Grand Marquis rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Valve Cover and Cylinder Heads Brands To Make Your 1978 Mercury Grand Marquis Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1978 Mercury Grand Marquis demands trusted brand parts and products to keep it running. Many trusted brands of Valve Cover and Cylinder Heads make up Advance Auto Parts’ inventory, and all are ready to help make your Grand Marquis the best it can be. Be sure to browse some of our top Valve Cover and Cylinder Heads brands and parts.

Popular Edelbrock Valve Cover and Cylinder Heads

We carry Edelbrock parts in our stock across Push Rods categories, plus more. For a 1978 Mercury Grand Marquis, our most popular Edelbrock Valve Cover and Cylinder Heads include:
Pushrod Set for Ford 351W
from $184.99
(1)
Pushrod Set for Ford 351W
Push Rods

Top 1978 Mercury Grand Marquis Valve Cover and Cylinder Heads from Sealed Power

Sealed Power products are another trusted brand when it comes to Valve Cover and Cylinder Heads for your 1978 Mercury Grand Marquis. Popular Sealed Power parts include:
Engine Valve Lifter
from $9.79
(11)
Engine Valve Lifter
Engine Valve Lifters
Engine Rocker Arm Kit
from $8.99
(6)
Engine Rocker Arm Kit
Rocker Arms
Engine Rocker Arm Nut
from $0.95
(4)
Engine Rocker Arm Nut
Rocker Arm Nuts

FAQs for 1978 Mercury Grand Marquis Valve Cover and Cylinder Heads

What are the most purchased Valve Cover and Cylinder Heads for the 1978 Mercury Grand Marquis?

Out of 51 Valve Cover and Cylinder Heads for the 1978 Mercury Grand Marquis, the most popular in our inventory are:
Cylinder Head Gasket: Composite, Without Head Bolts
from $34.99
(2)
Cylinder Head Gasket: Composite, Without Head Bolts
Cylinder Head Gaskets
Cylinder Head Gasket: Composite, Without Head Bolts
from $34.99
(4)
Cylinder Head Gasket: Composite, Without Head Bolts
Cylinder Head Gaskets
Engine Push Rod
from $2.49
This product is not rated
Engine Push Rod
Push Rods

What are the top-rated 1978 Mercury Grand Marquis Valve Cover and Cylinder Heads?

Top-rated Valve Cover and Cylinder Heads for your 1978 Mercury Grand Marquis based on customer reviews/ratings are:
Engine Valve Spring Retainer Keeper
from $0.43
(2)
Engine Valve Spring Retainer Keeper
“I would purchase again”
Engine Rocker Arm Nut
from $0.72
(1)
Engine Rocker Arm Nut
“Came in a very large box, that was not taped out well. I was just lucky the driver noticed they fell out”
Valve Cover
from $89.99
(1)
Valve Cover
“the tolerances were so far off on these that to make the PCV gap fit between the rocker arms the bolt pattern was so far off you couldn’t get any of t”