1977 Mercury Comet Remanufactured Engines

Keep Your 1977 Mercury Comet in Top Shape with a Quality Remanufactured Engine

When it comes to maintaining or upgrading your 1977 Mercury Comet, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Remanufactured Engine for your Comet. We currently carry a top Remanufactured Engine in stock that is built to last. Whether you’re replacing a damaged Remanufactured Engine or looking to upgrade, our selection for the 1977 Mercury Comet ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.

Explore Related Parts

And while you’re here, don’t forget to check out related part categories like Engine Gaskets and Seals and Engine Timing Parts to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 1977 Mercury Comet running smoothly and looking great.

Essential 1977 Mercury Comet Remanufactured Engines

Spartan – Engine Long Block; Ford 351W H.P. Mid-Dress (Part No.HP11M)

Engine Long Block; Ford 351W H.P. Mid-Dress

from

$6504.99
ATK High Performance Engines are based on dyno proven combinations built with name brand parts. Most performance engines come in 3 different dress levels and range from 245HP-700HP+ carrying a 2 Year Warranty built by a name you can trust.
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Spartan – Engine Long Block; Ford 351W H.P. Mid-Dress Eng (Part No.HP09M)

Engine Long Block; Ford 351W H.P. Mid-Dress Eng

from

$4853.99
ATK High Performance Engines are based on dyno proven combinations built with name brand parts. Most performance engines come in 3 different dress levels and range from 245HP-700HP+ carrying a 2 Year Warranty built by a name you can trust.
See More

Spartan – Engine Long Block; Ford 302 H.P. 68-97 Engine (Part No.HP79)

Engine Long Block; Ford 302 H.P. 68-97 Engine

from

$3678.99
ATK High Performance Engines are based on dyno proven combinations built with name brand parts. Most performance engines come in 3 different dress levels and range from 245HP-700HP+ carrying a 2 Year Warranty built by a name you can trust.
See More

Spartan – Engine Complete Assembly; FORD 302 PERF COMP/DYNO (Part No.HP78C)

Engine Complete Assembly; FORD 302 PERF COMP/DYNO

from

$7536.99
ATK High Performance Engines are based on dyno proven combinations built with name brand parts. Most performance engines come in 3 different dress levels and range from 245HP-700HP+ carrying a 2 Year Warranty built by a name you can trust.
See More

Spartan – Engine Complete Assembly; FORD 351W PERF COMP/DYNO (Part No.HP11C)

Engine Complete Assembly; FORD 351W PERF COMP/DYNO

from

$7386.99
ATK High Performance Engines are based on dyno proven combinations built with name brand parts. Most performance engines come in 3 different dress levels and range from 245HP-700HP+ carrying a 2 Year Warranty built by a name you can trust.
See More

Spartan – Engine Complete Assembly; FORD 351W PERF COMP/DYNO (Part No.HP09C)

Engine Complete Assembly; FORD 351W PERF COMP/DYNO

from

$5891.99
ATK High Performance Engines are based on dyno proven combinations built with name brand parts. Most performance engines come in 3 different dress levels and range from 245HP-700HP+ carrying a 2 Year Warranty built by a name you can trust.
See More

Spartan – Engine Long Block; Ford 351W H.P. 68-97 Engine (Part No.HP11)

Engine Long Block; Ford 351W H.P. 68-97 Engine

from

$4986.99
ATK High Performance Engines are based on dyno proven combinations built with name brand parts. Most performance engines come in 3 different dress levels and range from 245HP-700HP+ carrying a 2 Year Warranty built by a name you can trust.
See More

Spartan – Engine Long Block; Ford 302 H.P. Mid-Dress Engine (Part No.HP78M)

Engine Long Block; Ford 302 H.P. Mid-Dress Engine

from

$6176.99
ATK High Performance Engines are based on dyno proven combinations built with name brand parts. Most performance engines come in 3 different dress levels and range from 245HP-700HP+ carrying a 2 Year Warranty built by a name you can trust.
See More

Spartan – Engine Long Block; Ford 302 75-79 Engine (Part No.DF13)

Engine Long Block; Ford 302 75-79 Engine

from

$2089.99
Remanufactured Engines are fully disassembled; heads, blocks, cranks & cams are machined & wear parts are replaced. Each engine is individually tested after assembly to assure compression, oil pressure and water jacket integrity.

Product Features:
  • Each engine we remanufacture is essentially reverse engineered – in part to discover original factory deficiencies. If possible, our seasoned R&D personnel & QC experts make improvements. Why shouldn’t our engine last longer than your first?
  • Engines come with installation gasket set & oil pump unless noted otherwise. If we have important installation information it will be included on tags or in the paperwork packaged with your engine.
  • Engines are securely packaged in a recyclable container that will also protect your core on the return trip. Our nationwide warehouse network means speedy delivery.
  • Each engine is remanufactured with quality OE level components not “white” box generic parts that may or may not satisfy your needs and expectations. When you use the best you get the best results and satisfaction.
See More

Spartan – Engine Long Block; Ford 302 H.P. 68-97 Engine (Part No.HP78)

Engine Long Block; Ford 302 H.P. 68-97 Engine

from

$5394.99
ATK High Performance Engines are based on dyno proven combinations built with name brand parts. Most performance engines come in 3 different dress levels and range from 245HP-700HP+ carrying a 2 Year Warranty built by a name you can trust.
See More

Spartan – Engine Complete Assembly; Ford 302 EFI 300HP Drop-In (Part No.HP79C-EFI)

Engine Complete Assembly; Ford 302 EFI 300HP Drop-In

from

$6245.99
ATK High Performance Engines are based on dyno proven combinations built with name brand parts. Most performance engines come in 3 different dress levels and range from 245HP-700HP+ carrying a 2 Year Warranty built by a name you can trust.

Product Features:
  • No core engine sold outright strapped & shipped on pallet cover in HD cardboard
  • Product might not be available in all states due to local laws.
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Spartan – Engine Long Block; Ford 351W HP 68-97 H.P. Base Eng (Part No.HP09)

Engine Long Block; Ford 351W HP 68-97 H.P. Base Eng

from

$3868.99
ATK High Performance Engines are based on dyno proven combinations built with name brand parts. Most performance engines come in 3 different dress levels and range from 245HP-700HP+ carrying a 2 Year Warranty built by a name you can trust.
See More

Spartan – Engine Complete Assembly; FORD 302 PERF COMP/DYNO (Part No.HP79C)

Engine Complete Assembly; FORD 302 PERF COMP/DYNO

from

$5768.99
ATK High Performance Engines are based on dyno proven combinations built with name brand parts. Most performance engines come in 3 different dress levels and range from 245HP-700HP+ carrying a 2 Year Warranty built by a name you can trust.
See More

Spartan – Engine Complete Assembly; FORD 302 68-74 DROP-IN ENG (Part No.HP99F)

Engine Complete Assembly; FORD 302 68-74 DROP-IN ENG

from

$4078.99
ATK High Performance Engines are based on dyno proven combinations built with name brand parts. Most performance engines come in 3 different dress levels and range from 245HP-700HP+ carrying a 2 Year Warranty built by a name you can trust.
See More

Spartan – Engine Long Block; Ford 302 68-74 Engine (Part No.DFXD)

Engine Long Block; Ford 302 68-74 Engine

from

$2089.99
Remanufactured Engines are fully disassembled; heads, blocks, cranks & cams are machined & wear parts are replaced. Each engine is individually tested after assembly to assure compression, oil pressure and water jacket integrity.

Product Features:
  • Each engine we remanufacture is essentially reverse engineered – in part to discover original factory deficiencies. If possible, our seasoned R&D personnel & QC experts make improvements. Why shouldn’t our engine last longer than your first?
  • Engines come with installation gasket set & oil pump unless noted otherwise. If we have important installation information it will be included on tags or in the paperwork packaged with your engine.
  • Engines are securely packaged in a recyclable container that will also protect your core on the return trip. Our nationwide warehouse network means speedy delivery.
  • Each engine is remanufactured with quality OE level components not “white” box generic parts that may or may not satisfy your needs and expectations. When you use the best you get the best results and satisfaction.
See More

Spartan – Engine Long Block; Ford 302 H.P. Mid-Dress Engine (Part No.HP79M)

Engine Long Block; Ford 302 H.P. Mid-Dress Engine

from

$4575.99
ATK High Performance Engines are based on dyno proven combinations built with name brand parts. Most performance engines come in 3 different dress levels and range from 245HP-700HP+ carrying a 2 Year Warranty built by a name you can trust.
See More

Spartan – Engine Complete Assembly; Ford 351W 390HP EFI Drop-In Eng (Part No.HP11C-EFI)

Engine Complete Assembly; Ford 351W 390HP EFI Drop-In Eng

from

$7633.99
High Performance Engines are based on dyno proven combinations built with name brand parts. Applications Not Verified, Not Legal for Pollution Controlled Vehicles. See Warranty Details for Complete Terms & Conditions.

Product Features:
  • Engine is designed to have great street manners, and work with most stock components.
  • Product might not be available in all states due to local laws.
See More

Most Popular Remanufactured Engine for 1977 Mercury Comets

Enhance your 1977 Mercury Comet with this popular Remanufactured Engine we have in stock, for $2,089.99.

Spartan – Engine Long Block; Ford 302 75-79 Engine (Part No.DF13)

Engine Long Block; Ford 302 75-79 Engine

from

$2089.99
Remanufactured Engines are fully disassembled; heads, blocks, cranks & cams are machined & wear parts are replaced. Each engine is individually tested after assembly to assure compression, oil pressure and water jacket integrity.

Product Features:
  • Each engine we remanufacture is essentially reverse engineered – in part to discover original factory deficiencies. If possible, our seasoned R&D personnel & QC experts make improvements. Why shouldn’t our engine last longer than your first?
  • Engines come with installation gasket set & oil pump unless noted otherwise. If we have important installation information it will be included on tags or in the paperwork packaged with your engine.
  • Engines are securely packaged in a recyclable container that will also protect your core on the return trip. Our nationwide warehouse network means speedy delivery.
  • Each engine is remanufactured with quality OE level components not “white” box generic parts that may or may not satisfy your needs and expectations. When you use the best you get the best results and satisfaction.
See More

FAQs for 1977 Mercury Comet Remanufactured Engines

What’s the price range for 1977 Mercury Comet Remanufactured Engines?

We currently have just one Remanufactured Engines for the 1977 Mercury Comet in stock: Engine Long Block; Ford 302 75-79 Engine and it costs $2,089.99.

Does Advance Auto Parts sell Remanufactured Engines for other Mercury Comet model years?

Yes, we carry Remanufactured Engines for 7 model years of Mercury Comets between 1968 and 1976. The following model years are the most popular for Remanufactured Engine purchases: 1976, 1975, 1974, 1973, 1972, 1971, 1969, and 1968.

Does Advance Auto Parts sell Remanufactured Engines for any other 1977 Mercury models?

Yes. We stock Remanufactured Engines for 3 other popular 1977 Mercury models. Some of the most popular are 1977 Cougar Remanufactured Engines, 1977 Grand Marquis Remanufactured Engines, 1977 Marquis Remanufactured Engines, and 1977 Monarch Remanufactured Engines.

What types of Remanufactured Engines do you sell for my 1977 Mercury Comet?

We currently have just 1 Remanufactured Engine in stock for a 1977 Mercury Comet, and as of 11/2/25, it is a Remanufactured Engine.

Can I get help with 1977 Mercury Comet Remanufactured Engine orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mercury Remanufactured Engines and more.

What is your return policy for Mercury Comet Remanufactured Engines?

Advance Auto Parts keeps returns simple. For new Mercury Comet Remanufactured Engines and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.