Mercury S-55 Performance Engines

Your One-Stop Shop For Trusted Mercury S-55 Performance Engines

If you’re in search of Mercury S-55 Performance Engines aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 27 Performance Engines from top brands with prices ranging from $31.99 to $899.99.

Beyond great prices, we stock trusted brands manufacturing all types of Performance Engines for your Mercury S-55.

And don’t forget to read customer reviews across all Performance Engines categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Performance Engines have to cost top dollar, and we prove it. Browse our top Mercury S-55 Performance Engines below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Please Select your Vehicle to See Exact Fit Parts

Essential Mercury S-55 Performance Engines

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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Competition Cams – Competition Cams High Energy 218/218 Hydraulic Flat Cam and Lifter Kit, CL33-224-3 (Part No.CL33-224-3)

Competition Cams High Energy 218/218 Hydraulic Flat Cam and Lifter Kit, CL33-224-3

from

$386.99
FE FORD HYDRAULIC CAM AND LIFTER KIT – High Energy: Good upgrade for factory performance cams in 390-428. Noticeable idle.
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Edelbrock – Edelbrock Performer-Plus Camshaft Kit, 2106 (Part No.2106)

Edelbrock Performer-Plus Camshaft Kit, 2106

from

$392.99
“Edelbrock Performer-Plus Camshaft No: 2106 is designed for 352-428 Ford V8 engines and produce optimum torque from the low-end to the mid-range. Performer-Plus camshafts should be matched with Performer manifolds for vehicles operating from off-idle to 5500 rpm. The Performer-Plus No: 2106 is a smooth idling cam for daily drivers, trucks, vans, RVs and 4x4s. You can expect a major improvement in throttle response and torque. In the manifold section you’ll find torque graphs showing the power gains from Performer manifolds and Performer-Plus cams. All camshafts include flat tappet lifters (except for cams designed for use with stock roller lifters), assembly lube and instructions. This cam produced 410 Ft Lbs of Torque when paired with Performer 390 intake manifold No: 2105 and stock cylinder heads. Will not work in 427 side-oilers. Camshaft specifications: – Intake duration: 194 Degrees – Exhaust duration: 204 Degrees – Intake lift: .460″” – Exhaust lift: .480″” – Lobe separation: 110 Degree – Intake Center Line: 105 Degree – Vacuum: 16″””
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Mr. Gasket – Mr. Gasket Intake Gasket, 202A (Part No.202A)

Mr. Gasket Intake Gasket, 202A

from

$49.99
Mr. Gasket Performance Intake Gaskets are manufactured from cellulose/nitrile composition gasket material. They provide excellent sealing and durability. Can be trimmed if necessary for modified port applications. Complete with manifold end seals and distributor gasket (where applicable). For original equipment replacement, high performance street, drag race and oval track.
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FEL-PRO Performance – FEL-PRO Performance PERFORMANCE INTAKE MANIFOLD GASKET SET, 1246 (Part No.1246)

FEL-PRO Performance PERFORMANCE INTAKE MANIFOLD GASKET SET, 1246

from

$39.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
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Competition Cams – Competition Cams Xtreme Energy 212/218 Hydraulic Flat Cam and Lifter Kit, CL33-234-4 (Part No.CL33-234-4)

Competition Cams Xtreme Energy 212/218 Hydraulic Flat Cam and Lifter Kit, CL33-234-4

from

$397.99
Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts.
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Competition Cams – Competition Cams High Energy 206/206 Hydraulic Flat Cam K-Kit, K33-221-3 (Part No.K33-221-3)

Competition Cams High Energy 206/206 Hydraulic Flat Cam K-Kit, K33-221-3

from

$592.99
Ideal for use with mainly stock components like rocker arms, intake manifolds, cylinder heads, compression ratio, torque converters and rear gear ratios, the High Energy camshaft grind family is a great choice for street performance applications.
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FEL-PRO Performance – FEL-PRO Performance Performance Cylinder Head Gasket, 1020 (Part No.1020)

FEL-PRO Performance Performance Cylinder Head Gasket, 1020

from

$39.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions!
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Edelbrock – Edelbrock Engine Gasket Set, 7368 (Part No.7368)

Edelbrock Engine Gasket Set, 7368

from

$162.99
The Edelbrock No: 7368 head gaskets provide the best sealing solution and are matched to Edelbrock cylinder heads for optimal performance. Edelbrock relies on industry leading head gasket manufactures to ensure our head gasket sets will provide the best fit and sealing properties when used with Edelbrock aluminum cylinder heads. Edelbrock head gaskets are manufactured from high-density materials and feature a superior design that performs under pressure and provides a long-lasting seal, without re-torqueing.
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Edelbrock – Edelbrock Performer 390 Intake Manifold for Ford FE, Satin Finish, 2105 (Part No.2105)

Edelbrock Performer 390 Intake Manifold for Ford FE, Satin Finish, 2105

from

$627.99
Edelbrock Performer 390 Intake Manifold for Ford FE, Satin Finish, 2105.
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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 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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Competition Cams – Competition Cams Magnum 2230/230 Hydraulic Flat Cam, 33-230-4 (Part No.33-230-4)

Competition Cams Magnum 2230/230 Hydraulic Flat Cam, 33-230-4

from

$309.99
An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.
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Competition Cams – Competition Cams Magnum 253/253 Hydraulic Flat Cam, 33-241-4 (Part No.33-241-4)

Competition Cams Magnum 253/253 Hydraulic Flat Cam, 33-241-4

from

$309.99
An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.
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Edelbrock – Edelbrock Sure Seat Valve Springs, 5792 (Part No.5792)

Edelbrock Sure Seat Valve Springs, 5792

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$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 Performance Valve Cover Gaskets, 275 (Part No.275)

Mr. Gasket Performance Valve Cover Gaskets, 275

from

$51.99
Mr. Gasket Performance Valve Cover Gaskets are high-density cork/rubber blend gaskets that use evenly sized cork particles distributed evenly throughout the rubber binder. The result is a compressible valve cover gasket without leak paths. These gaskets create a positive seal by controlled swelling of the gasket material when exposed to hot engine oil. Provides excellent flange sealing and durability. For original equipment replacement, high performance street, drag race and oval track use.
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Edelbrock – Edelbrock Valve Cover Gasket Set for Ford, Excellent Sealing Inegrity & Easy Installation, 7568 (Part No.7568)

Edelbrock Valve Cover Gasket Set for Ford, Excellent Sealing Inegrity & Easy Installation, 7568

from

$43.99
The Edelbrock valve cover gaskets No: 7568 provide excellent sealing integrity and conformability for easy installation. The multi-layer construction has two highly compressible, high rubber content, fiber-reinforced outside layers which are chemically bonded to a high strength composite core. This unique core-reinforced construction has a radial strength to resist high-vacuum or blow-out conditions. Edelbrock valve cover gaskets are an Edelbrock product.
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Competition Cams – "Competition Cams SUPER VALVE LOCKS, 3/8"" 1 ST, 612-16" (Part No.612-16)

"Competition Cams SUPER VALVE LOCKS, 3/8"" 1 ST, 612-16"

from

$43.99
Inside tang-to-taper relationship held tightly for repeatable valve spring installed heights
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Edelbrock – Edelbrock Water Pump Ford FE 352-428 1965-76 in Satin Finish, 8805 (Part No.8805)

Edelbrock Water Pump Ford FE 352-428 1965-76 in Satin Finish, 8805

from

$400.99
Maximum cooling for street and racing engines. Internal passages are balanced for maximum flow. Impeller is larger than others for maximum pressure. Impeller vanes dramatically increase flow rates. Equal distribution to both sides of block. Only flows in one direction for optimum efficiency. In the early days of the automotive performance industry, you either ran what was available, or you fabricated something you thought met your needs. Such needs were the building blocks of this industry, and it was through the efforts of many that we have the automotive aftermarket, but it was through the work of one name in particular to which many in the industry owe a great debt, and that name is Edelbrock.
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Performance Engines Brands You Can Trust For Your Mercury S-55

5 trusted brands of Performance Engines line our shelves, ready to help keep your Mercury S-55 running smooth. Below are some of the most popular brands and their top Performance Engines offerings:

Most Purchased Mercury S-55 Performance Engines from Edelbrock

When you buy the most frequently purchased Edelbrock brand Performance Engines, you can be confident it will be the right part for your Mercury S-55. Here are the Edelbrock Performance Engines Advanced Auto customers buy the most:
Edelbrock Performer 390 Intake Manifold for Ford FE, Satin Finish, 2105
from $627.99
(1)
Edelbrock Performer 390 Intake Manifold for Ford FE, Satin Finish, 2105
Performance Intake Manifolds
Mr. Gasket High Performance Thermostat - 160 Degree Brass & Copper, 4363
from $31.99
(12)
Mr. Gasket High Performance Thermostat – 160 Degree Brass & Copper, 4363
Performance Engine Coolant Thermostats
"Competition Cams SUPER VALVE LOCKS, 3/8"" 1 ST, 612-16"
from $43.99
This product is not rated
"Competition Cams SUPER VALVE LOCKS, 3/8"" 1 ST, 612-16"
Performance Engine Valve Lock

FAQs for Mercury S-55 Performance Engines

What are the most purchased Performance Engines for the Mercury S-55?

Out of 27 Performance Engines for the Mercury S-55, the most popular in our inventory are:
"Competition Cams SUPER VALVE LOCKS, 3/8"" 1 ST, 612-16"
from $43.99
This product is not rated
"Competition Cams SUPER VALVE LOCKS, 3/8"" 1 ST, 612-16"
Performance Engine Valve Lock
FEL-PRO Performance PERFORMANCE INTAKE MANIFOLD GASKET SET, 1246
from $39.99
This product is not rated
FEL-PRO Performance PERFORMANCE INTAKE MANIFOLD GASKET SET, 1246
Performance Engine Intake Manifold Gaskets
Mr. Gasket Intake Gasket, 202A
from $49.99
This product is not rated
Mr. Gasket Intake Gasket, 202A
Performance Engine Intake Manifold Gaskets

What are the top-rated Mercury S-55 Performance Engines?

Top-rated Performance Engines for your Mercury S-55 based on customer reviews/ratings are:
FEL-PRO Performance Performance Cylinder Head Gasket, 1020
from $39.99
(1)
FEL-PRO Performance Performance Cylinder Head Gasket, 1020
“Had to call and talk to 3 operators 3 separate times to get this straightened out .On item description should say 1 gasket requires 2.”