1990 Mercury Cougar Performance Engines

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Keep Your 1990 Mercury Cougar in Top Shape with Quality Performance Engines

Whether you’re repairing or upgrading your Performance Engine, using high-quality parts is key to keeping your 1990 Mercury Cougar looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Engine Coolant Thermostats, Performance Engine Valve Springs, and Performance Torque Converters. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Performance Engines from Trusted Brands

Looking for a reliable Performance Engine? We’ve got you covered with options from brands you know and trust like Competition Cams. For example, Competition Cams Performance Engines start at just $482.99 with an average 4.0 star rating. With over 54 reviews and a solid 4.0 star average, you can shop with confidence knowing other Mercury Cougar owners approve.

Explore Related Parts

While you’re upgrading or replacing your Performance Engine, don’t forget to check out other key components like Performance Distributors and Performance Oil Filters. At Advance Auto Parts, we’re here to help you keep your 1990 Mercury Cougar in peak condition, inside and out.

Essential 1990 Mercury Cougar Performance Engines

Competition Cams – "Competition Cams VALVE SPRINGS, 1.437"" SINGLE 1 ST, 942-16" (Part No.942-16)

"Competition Cams VALVE SPRINGS, 1.437"" SINGLE 1 ST, 942-16"

from

$101.99
Single Outer Valve Springs from COMP Cams allow you to build the perfect spring assembly for your application. The valve spring creation process is far more involved than most people realize. Selecting the right metal stock and creating the best design is not done by chance. COMP Cams has developed a process that creates the highest quality valve spring available. The result is a product that meets and exceeds the expectations of today’s engine builders and racers.
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Competition Cams – "Competition Cams VALVE SPRING KIT, FOR LS 1.310"" BEEHIVE 1 KT, 26918CS-KIT" (Part No.26918CS-KIT)

"Competition Cams VALVE SPRING KIT, FOR LS 1.310"" BEEHIVE 1 KT, 26918CS-KIT"

from

$482.99
“This Beehive Valve Spring Kit for LS engines is designed for hydraulic roller cams and includes carefully matched Beehive Springs, steel retainers, locks, seals and spring seats. With a .625″” maximum lift, these Beehive Valve Springs deliver increased valve train stability and a much lighter valve train. This is achieved with less spring pressure for better valve control and reduced weight of both the spring and retainer. The unique Beehive shape handles valve train stress more efficiently to eliminate damaging harmonics and increases high RPM horsepower and durability. The oval/multi-arc wire shape places the maximum area of the wire at the point of highest stress to handle valve train stress more efficiently and allow better heat dissipation for longer life.Kit Includes:26918-16 Beehive Valve Springs774-16 Steel Retainers623-16 7° Steel Valve Locks511-16 Valve Seals4705-16 Spring Seats”
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Edelbrock – Edelbrock Sure Seat Valve Springs, 5792 (Part No.5792)

Edelbrock Sure Seat Valve Springs, 5792

from

$157.99
The Edelbrock No: 5792 Sure Seat Valve Spring for Chrysler 383-400-413-440 V8 1969-79 O.E Cast iron cylinder heads are made of highest quality spring wire and precision wound to close tolerances, our Sure Seat Valve Spring sets are for use on original equipment heads when installing Edelbrock Performer-Plus, Performer RPM and Torker-Plus camshafts. These are the same high-performance springs used on Edelbrock Performer and RPM cylinder heads. For camshaft warranty compliance, use only the springs recommended by Edelbrock for each camshaft application.
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Mr. Gasket – Mr. Gasket High Performance Thermostat – 160 Degree Brass & Copper, 4363 (Part No.4363)

Mr. Gasket High Performance Thermostat - 160 Degree Brass & Copper, 4363

from

$31.99
Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.
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B & M – B & M Holeshot 2400, 40412 (Part No.40412)

B & M Holeshot 2400, 40412

from

$899.99
This B&M Holeshot 2400 fits 1966-91 Ford C6 transmissions with 1.848-inch crank pilot and a 11.4-inch bolt circle. The Holeshot converters are an excellent choice for vehicles with engine modifications, particularly big cams that tend to reduce low end power and torque. The higher stall speed of this converter will launch the car in a higher rpm range where more torque is readily available, resulting in quicker acceleration. Holeshot converters feature furnace brazed impeller fins and turbine, new precision alloy impeller hub and new heavy duty needle bearings. Other features include fully balanced and pressure tested by expert technicians. If your vehicle is equipped with a plate type nitrous system or supercharger, please refer to the Nitrous Holeshot line of converters. Notes: Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. This converter is Not recommended for supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product.
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B & M – B & M Torque Converter, Tork Master 3000, 50442 (Part No.50442)

B & M Torque Converter, Tork Master 3000, 50442

from

$727.99
This B&M Tork Master 3000 fits 1970-82 Ford C4 transmissions with 26 spline input, 1.375 inch crank pilot and has a 10.5-inch bolt circle. Don’t let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features, making them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Not recommended for big block, supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product.
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B & M – B & M Holeshot 2000, 50448 (Part No.50448)

B & M Holeshot 2000, 50448

from

$561.99
This Holeshot 2000 fits 1970-82 Ford C4 automatic transmissions with a 26-spline input shaft, 1.375-inch crank pilot and has a 10.5-inch bolt circle. Holeshot torque converters are for serious-minded performance enthusiasts and offer additional strength and durability features not found in our Traveler or Tork Master series of converters. The Holeshot 2400 converter is good for vehicles with some performance engine modifications, particularly big cams that tend to reduce low-end power and torque. The higher stall speed of this converter will launch the car in a higher rpm range where more torque is readily available, resulting in quicker acceleration. Holeshot converters feature furnace brazed impeller fins and turbine, new precision alloy impeller hub and new heavy duty needle bearings. Other features include fully balanced and pressure tested by expert technicians. If your vehicle is equipped with a plate type nitrous system or supercharger, please refer to the Nitrous Holeshot line of converters. Notes: Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. This converter is Not recommended for supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product.
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B & M – B & M Torque Converter, Tork Master 2400, 50441 (Part No.50441)

B & M Torque Converter, Tork Master 2400, 50441

from

$549.99
This B&M Tork Master 2400 fits 1970-82 Ford C4 transmissions with a 1.375-inch crank pilot, 26 spline input and has a 10.5-inch bolt circle. Don’t let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features, making them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Not recommended for big block, supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product.
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B & M – B & M Torque Converter, C4 26 Spline 10.5 Bc, 50416 (Part No.50416)

B & M Torque Converter, C4 26 Spline 10.5 Bc, 50416

from

$675.99
B&M Holeshot 2400 for 1970-82 Ford C4 Automatic Transmissions Holeshot Torque Converter 2400 Stall with 26 spline input and 10.5-inch bolt circle. The Holeshot 2400 converter is good for vehicles with some performance engine modifications, particularly big cams that tend to reduce low-end power and torque. The higher stall speed of this converter will launch the car in a higher rpm range where more torque is readily available, resulting in quicker acceleration. Holeshot converters feature furnace brazed impeller fins and turbine, new precision alloy impeller hub and new heavy duty needle bearings. Other features include fully balanced and pressure tested by expert technicians. If your vehicle is equipped with a plate type nitrous system or supercharger, please refer to the Nitrous Holeshot line of converters. Notes: Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. This converter is Not recommended for supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product.
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B & M – B & M Torque Converter, Holeshot 2400, 40422 (Part No.40422)

B & M Torque Converter, Holeshot 2400, 40422

from

$662.99
This B&M HoleShot 2400 fits 1971-91 Ford, Lincoln and Mercury C6 transmissions with a 1.375-inch crank pilot and has a 11.4-inch bolt circle. The Holeshot converters are an excellent choice for vehicles with engine modifications, particularly big cams that tend to reduce low end power and torque. The higher stall speed of this converter will launch the car in a higher rpm range where more torque is readily available, resulting in quicker acceleration. Holeshot converters feature furnace brazed impeller fins and turbine, new precision alloy impeller hub and new heavy duty needle bearings. Other features include fully balanced and pressure tested by expert technicians. If your vehicle is equipped with a plate type nitrous system or supercharger, please refer to the Nitrous Holeshot line of converters. Notes: Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. This converter is Not recommended for supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product. Note: For Small block engines only.
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B & M – B & M Torque Converter, Tork Master 2400, 40438 (Part No.40438)

B & M Torque Converter, Tork Master 2400, 40438

from

$749.99
This B&M Tork Master 2400 fits 1980-92 Ford AOD transmissions with a 1.375-inch crank pilot and has a 11.4-inch bolt circle. Don’t let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features, making them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Not recommended for big block, supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product.
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Most Popular Performance Engine Coolant Thermostat for 1990 Mercury Cougars

Enhance your 1990 Mercury Cougar with this popular Performance Engine Coolant Thermostat we have in stock, for $31.99.

Mr. Gasket – Mr. Gasket High Performance Thermostat – 160 Degree Brass & Copper, 4363 (Part No.4363)

Mr. Gasket High Performance Thermostat - 160 Degree Brass & Copper, 4363

from

$31.99
Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.
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Best-Selling 1990 Mercury Cougar Performance Engine Valve Spring

Upgrade your Cougar with our best-selling Performance Engine Valve Spring with a 4 Starts rating across 15 reviews.

Competition Cams – "Competition Cams VALVE SPRING KIT, FOR LS 1.310"" BEEHIVE 1 KT, 26918CS-KIT" (Part No.26918CS-KIT)

"Competition Cams VALVE SPRING KIT, FOR LS 1.310"" BEEHIVE 1 KT, 26918CS-KIT"

from

$482.99
“This Beehive Valve Spring Kit for LS engines is designed for hydraulic roller cams and includes carefully matched Beehive Springs, steel retainers, locks, seals and spring seats. With a .625″” maximum lift, these Beehive Valve Springs deliver increased valve train stability and a much lighter valve train. This is achieved with less spring pressure for better valve control and reduced weight of both the spring and retainer. The unique Beehive shape handles valve train stress more efficiently to eliminate damaging harmonics and increases high RPM horsepower and durability. The oval/multi-arc wire shape places the maximum area of the wire at the point of highest stress to handle valve train stress more efficiently and allow better heat dissipation for longer life.Kit Includes:26918-16 Beehive Valve Springs774-16 Steel Retainers623-16 7° Steel Valve Locks511-16 Valve Seals4705-16 Spring Seats”
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Top-Quality Performance Torque Converters for 1990 Mercury Cougars

Choose a high-quality OEM or aftermarket Performance Torque Converter for Mercury Cougars and enjoy top-notch performance from $749.99.

B & M – B & M Torque Converter, Tork Master 2400, 40438 (Part No.40438)

B & M Torque Converter, Tork Master 2400, 40438

from

$749.99
This B&M Tork Master 2400 fits 1980-92 Ford AOD transmissions with a 1.375-inch crank pilot and has a 11.4-inch bolt circle. Don’t let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features, making them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Not recommended for big block, supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product.
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Top-Rated Performance Engine Brands For Your 1990 Mercury Cougar

When it comes to finding the perfect Performance Engine for your 1990 Mercury Cougar, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 3 trusted brands. We carry the most popular Performance Engine brands including Competition Cams, and more, all known for their exceptional customer ratings (average brand rating of 4.0 stars) and competitive prices, as low as $482.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1990 Mercury Cougar, providing peace of mind with parts that meet or exceed OEM standards.

Popular Competition Cams 1990 Mercury Cougar Performance Engines

If you’re looking for a top-quality Performance Engine for your 1990 Mercury Cougar, Advance Auto Parts has exactly what you need with our selection of Competition Cams Performance Engines. We have 1 Competition Cams Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $482.99, you’ll find the perfect Performance Engine for your needs and budget. Competition Cams Performance Engines for the 1990 Mercury Cougar come highly rated, with over 15 customer reviews and an impressive average rating of 4.0 stars. Choosing a Competition Cams Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

FAQs for 1990 Mercury Cougar Performance Engines

What are the best-selling Performance Engines for 1990 Mercury Cougars?

Out of 3 Performance Engines that fit 1990 Mercury Cougars, the following parts are the top sellers:

What’s the price range for 1990 Mercury Cougar Performance Engines?

The prices of Performance Engines for the 1990 Mercury Cougar range from $31.99 up to $749.99 for the most premium parts.

What is the average price of a Performance Engine for a 1990 Mercury Cougar?

The average price for Performance Engines for the 1990 Mercury Cougar is $421.66. Keep in mind the variety of part types within our Performance Engine category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Performance Engines for other Mercury Cougar model years?

Yes, we carry Performance Engines for 29 model years of Mercury Cougars between 1967 and 1997. The following model years are the most popular for Performance Engine purchases: 1997, 1996, 1995, 1994, 1993, 1992, 1991, 1989, and 1988.

What are the cheapest Performance Engines for my 1990 Mercury Cougar?

The cheapest 1990 Mercury Cougar Performance Engines we carry are:

Does Advance Auto Parts sell Performance Engines for any other 1990 Mercury models?

Yes. We stock Performance Engines for 2 other popular 1990 Mercury models. Some of the most popular are 1990 Grand Marquis Performance Engines, 1990 Colony Park Performance Engines, and 1990 Sable Performance Engines.

What are the top-rated Performance Engines that fit the 1990 Mercury Cougar?

Based on 54 reviews by customers, our 1990 Mercury Cougar Performance Engines have an average customer rating of 4.0 stars. These are the highest-rated categories of Performance Engines for the 1990 Mercury Cougar and their top-rated products:

What types of Performance Engines do you sell for my 1990 Mercury Cougar?

As of 8/2/26, these are some of the most in-demand types of Performance Engines for a 1990 Mercury Cougar:

Can I get help with 1990 Mercury Cougar Performance Engine orders?

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

What is your return policy for Mercury Cougar Performance Engines?

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