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 34 Performance Engines from top brands with prices ranging from $8.99 to $849.99.

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.

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Essential Mercury S-55 Performance Engines

Mr. Gasket – High Performance Thermostat (Part No.4365)

High Performance Thermostat

from

$32.49
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.

Product Features:
  • Opens At 195 Degrees
  • Designed to Resist Large Variations of Coolant Pressure at High RPM
  • Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
  • For High Performance Street, Drag Race, and Oval Track
  • Copper & Brass Construction – Resists Corrosion
  • High Flow
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Mr. Gasket – Intake Gasket (Part No.202A)

Intake Gasket

from

$47.49
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.

Product Features:
  • Manufactured from cellulose/nitrile composition gasket material
  • Provides excellent sealing and durability
  • Can be trimmed if necessary for modified port applications
  • Complete with manifold end seals and distributor gasket where applicable
  • For OE replacement, high performance street, drag race and oval track use
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Edelbrock – Intake Manifold Gasket for 1985-1976 390-428 FE Fords (Part No.7224)

Intake Manifold Gasket for 1985-1976 390-428 FE Fords

from

$30.99
Product Features:
  • Clean Positive Seal
  • Embossed Silicone Bead Surrounding The Port
  • Matched To Manifolds And Cylinder Heads
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Edelbrock – Performer-Link Adjustable True-Roller Timing Chain Set (Part No.7808)

Performer-Link Adjustable True-Roller Timing Chain Set

from

$85.99


Product Features:
  • Solid Bushing Chain Resists Stretching
  • For Use with Stock or Edelbrock Camshafts
  • Stressproof Steel Crank Gears
  • 3 Keyway Setting Points To Ensure Accurate Timing
  • True Bearing Surface Rolls with the Sprockets
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Competition Cams – High Energy 212/212 Hydraulic Flat Cam and Lifter Kit (Part No.CL33-222-3)

High Energy 212/212 Hydraulic Flat Cam and Lifter Kit

from

$404.99
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.

Product Features:
  • Good blend of efficiency and performance.
  • Perfect choice for performance street rebuilds.
  • Work well with mainly stock components such as rockers, manifolds, heads, compression, torque converters and gears.
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Competition Cams – High Energy 206/206 Hydraulic Flat Cam and Lifter Kit (Part No.CL33-221-3)

High Energy 206/206 Hydraulic Flat Cam and Lifter Kit

from

$648.99
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.

Product Features:
  • Good blend of efficiency and performance.
  • Perfect choice for performance street rebuilds.
  • Work well with mainly stock components such as rockers, manifolds, heads, compression, torque converters and gears.
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Edelbrock – Performer 390 Intake Manifold for Ford FE, Satin Finish (Part No.2105)

Performer 390 Intake Manifold for Ford FE, Satin Finish

from

$597.99


Product Features:
  • For Idle to 5500 RPM Street-Driven Performance
  • Dual-Plane Low-Rise Intake w/180 deg. Firing Order
  • Patented Runner Design Ensures Broad Torque Curve
  • Excellent Throttle Response and Mid-Range Power
  • 50-State Street Legal if Correct Carburetor Used
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Competition Cams – VALVE SEALS, TEFLON 3/8" 1 ST (Part No.505-16)

VALVE SEALS, TEFLON 3/8" 1 ST

from

$33.99
COMP Cams offers a complete line of valve stem seals, from the umbrella seals to the positive-stop Teflon seal. These seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The umbrella seal is normally used when a larger-than-stock diameter spring is used, in the case of a double spring, the positive-stop Teflon seal is used. The umbrella seals require no machining, but with the Teflon seal it is necessary to disassemble the heads and machine the top of the guide with a special .530 diameter cutter. Whenever you are planning an engine overhaul or a cam change, don’t forget the valve seals.

Product Features:
  • Work with .530″ guides and 3/8″ valve stem diameter
  • Valve stem oil seals keep unwanted oil from entering the combustion chamber
  • Several different types of valve seals are offered
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B & M – Torque Converter, Holeshot 2400 (Part No.40422)

Torque Converter, Holeshot 2400

from

$637.99
A higher than stock stall speed as delivered by a B&M Converter will provide several advantages. The high stall converter allows the engine to launch the car at a higher RPM where more torque is available and increased strength. Due to torque converter co

Product Features:
  • Furnace Brazed Impeller
  • Steel Alloy Pump Drive Tube
  • Heavy Duty Needle Bearing
  • Between Stator and Turbine
  • Furnace Brazed Turbine
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B & M – Holeshot 2400 (Part No.40412)

Holeshot 2400

from

$849.99
Holeshot 2400 for Ford 1966-1991 C6 with 332, 352, 360, 390, 406, 427, 428, 429 cid with 1.848 in. crank pilot (3) Application: Ford 1966 to 1991 C6 with 332, 352, 360, 390, 406, 427, 428, 429 cid with 1.848 crank pilot (3) Furnace brazed impeller New pre

Product Features:
  • Furnace Brazed Impeller
  • Steel Alloy Pump Drive Tube
  • Heavy Duty Needle Bearing
  • Between Stator and Turbine
  • Furnace Brazed Turbine
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Edelbrock – Sure Seat Valve Springs for Chrysler 383-400-413-440 V8 1969-79 (Part No.5792)

Sure Seat Valve Springs for Chrysler 383-400-413-440 V8 1969-79

from

$149.99
Product Features:
  • Non-Rotator Type
  • 1.550 in. Outer Diameter
  • .190 Wire Size
  • Single Coil Spring Type
  • Set of 16
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Competition Cams – Magnum 253/253 Hydraulic Flat Cam (Part No.33-241-4)

Magnum 253/253 Hydraulic Flat Cam

from

$297.99
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.

Product Features:
  • Best with aftermarket torque converters and 9.5:1 compression.
  • Great high RPM power.
  • Easy on valve train parts.
  • Can be used with mild ratio rocker arms and traditional performance valve springs.
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Competition Cams – Thumpr 226/241 Hydraulic Flat Cam (Part No.33-600-5)

Thumpr 226/241 Hydraulic Flat Cam

from

$341.99
Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods.

Product Features:
  • Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
  • Best with aftermarket converters and more rear gear.
  • Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.
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Competition Cams – High Energy 218/218 Hydraulic Flat Cam (Part No.33-224-3)

High Energy 218/218 Hydraulic Flat Cam

from

$395.99
HYDRAULIC – High Energy: Good upgrade for factory performance cams in 390-428. Noticeable idle.

Product Features:
  • HYDRAULIC – High Energy: Good upgrade for factory performance cams in 390-428. Noticeable idle.
  • 268/268 Advertised Duration, 218/218 Duration @ .050″, .494″/.494″ Lift, 110 Lobe Separation
  • Valve spring upgrade required
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Competition Cams – Magnum 2230/230 Hydraulic Flat Cam (Part No.33-230-4)

Magnum 2230/230 Hydraulic Flat Cam

from

$297.99
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.

Product Features:
  • Best with aftermarket torque converters and 9.5:1 compression.
  • Great high RPM power.
  • Easy on valve train parts.
  • Can be used with mild ratio rocker arms and traditional performance valve springs.
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FEL-PRO Performance – Performance Cylinder Head Gasket (Part No.1020)

Performance Cylinder Head Gasket

from

$39.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions.

Product Features:
  • Fel-Pro Performance head gaskets accommodate the high cylinder pressures and cylinder head movement associated with performance engines.
  • Inserted within a stainless steel armor surrounding each cylinder, wire ring design provides highly concentrated sealing around the combustion chamber.
  • Raises combustion sealing force to roughly three times that of standard head gaskets.
  • Steel wire rings for the greatest combustion seal strength.
  • Not intended for use in emission controlled vehicles.
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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:

Popular Competition Cams Performance Engines

Competition Cams products for the Mercury S-55 span several categories. Some of the highest-rated Competition Cams Performance Engines that will fit your Mercury S-55 are:
VALVE SEALS, TEFLON 3/8" 1 ST
from $33.99
(1)
VALVE SEALS, TEFLON 3/8" 1 ST
Performance Engine Valve Stem Seal Sets

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:
Performer 390 Intake Manifold for Ford FE, Satin Finish
from $597.99
(1)
Performer 390 Intake Manifold for Ford FE, Satin Finish
Performance Intake Manifolds
High Performance Thermostat
from $32.49
This product is not rated
High Performance Thermostat
Performance Engine Coolant Thermostats
Performer-Link Adjustable True-Roller Timing Chain Set
from $85.99
This product is not rated
Performer-Link Adjustable True-Roller Timing Chain Set
Performance Engine Timing Sets and Components

FAQs for Mercury S-55 Performance Engines

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

Out of 34 Performance Engines for the Mercury S-55, the most popular in our inventory are:
High Performance Thermostat
from $32.49
This product is not rated
High Performance Thermostat
Performance Engine Coolant Thermostats
Performer 390 Intake Manifold for Ford FE, Satin Finish
from $597.99
(1)
Performer 390 Intake Manifold for Ford FE, Satin Finish
Performance Intake Manifolds
Performer-Link Adjustable True-Roller Timing Chain Set
from $85.99
This product is not rated
Performer-Link Adjustable True-Roller Timing Chain Set
Performance Engine Timing Sets and Components

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:
Performance Cylinder Head Gasket
from $39.99
(1)
Performance Cylinder Head Gasket
“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.”