1966 Mercury Capri Performance Engines

Keep Your 1966 Mercury Capri 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 1966 Mercury Capri looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Engine Valve Cover Gasket Sets, Performance Engine Intake Manifold Gaskets, and Performance Engine Coolant Thermostats. 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 FEL-PRO Performance and Edelbrock. For example, FEL-PRO Performance Performance Engines start at just $35.99 with an average 4.2 star rating. Edelbrock offer similar pricing and quality, backed by strong customer feedback. With over 56 reviews and a solid 3 star average, you can shop with confidence knowing other Mercury Capri owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1966 Mercury Capri Performance Engine at Advance Auto Parts is around $134.87, with a range that starts at $13.99 and goes up to $454.99. With 19 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like Lower Intake Manifold Gasket Set: 11 Piece Set, High Performance Thermostat, and Cylinder Head Gasket: Steel Core Composite, Without Head Bolts start at just $31.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Performance Engine, don’t forget to check out other key components like Performance Fuel Systems and Performance Ignition Products. At Advance Auto Parts, we’re here to help you keep your 1966 Mercury Capri in peak condition, inside and out.

Essential 1966 Mercury Capri Performance Engines

Edelbrock – RPM Air-Gap #7521 Intake Manifold for Small-Block Ford 302-331-347 V8 (Part No.7521)

RPM Air-Gap #7521 Intake Manifold for Small-Block Ford 302-331-347 V8

from

$454.99
Edelbrock Part #7521 RPM Air-Gap intake manifold is designed for the small-block 302 CID Ford V8 or 331-347 stroker applications. The RPM Air-Gap incorporates the same race-winning technology that?s been used on our Victor Series competition intakes and i

Product Features:
  • RPM Air-Gap for 302-331-347 Small-Block Ford V8
  • Air-Gap design features an open air space under the plenum
  • Separates fuel and air from engine heat
  • Larger runners over standard 7121 manifold
  • Includes nitrous bosses
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Edelbrock – Performer 289 Intake Manifold for Small-Block Ford (Part No.2121)

Performer 289 Intake Manifold for Small-Block Ford

from

$314.99


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
  • Available in Multiple Finishes
See More

Edelbrock – Torker II 302 Intake Manifold Small-Block Ford (Part No.5021)

Torker II 302 Intake Manifold Small-Block Ford

from

$395.99
2500-6500 RPM high-performance street engines. Single-plane low-rise intake good for high RPM. Ideal for applications with limited hood clearance. For top-end HP and adequate throttle response. Available in cast or polished.

Product Features:
  • 2500 to 6500 RPM High Performance Street Engines
  • Single-Plane Low-Rise Intake Good for High RPM
  • Ideal for Applications with Limited Hood Clearance
  • For Top-End HP and Adequate Throttle Response
See More

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

High Performance Thermostat

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.

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
See More

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

High Performance Thermostat - 160 Degree Brass & Copper

from

$29.49
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 160 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
See More

Mr. Gasket – High Performance 180 Degree Thermostat for Increased Flow (Part No.4364)

High Performance 180 Degree Thermostat for Increased Flow

from

$29.99
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.

Product Features:
  • Opens At 180 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
See More

FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1011-1)

Cylinder Head Gasket: Steel Core Composite, Without Head Bolts

from

$52.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • PROPRIETARY COATING – Nonstick anti-friction coating seals small surface imperfections
  • NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
  • SUPERIOR SEAL – Precise embossed Printoseal sealing beads at all vital areas to eliminate leak paths
  • 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

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.
See More

FEL-PRO Performance – Performance Cylinder Head Gasket (Part No.1035)

Performance Cylinder Head Gasket

from

$82.99
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.
See More

Mr. Gasket – Ultra Seal: Oil Pan Gasket (Part No.6683)

Ultra Seal: Oil Pan Gasket

from

$68.99
High performance, race quality gasket with molded rubber coating over a steel core. Steel core provides rigidity and durability, preventing prevent push out while the molded rubber coating helps seal minor oil pan rail irregularities. The one piece design eliminates the need for separate end seals to make installation easier and even further reduce the possibility of oil leakage. Provides excellent sealing and durability. Excellent replacement for stock original equipment, high performance street, drag race and oval track. Includes gasket and new oil pan bolts.

Product Features:
  • Steel core provides rigidity, durability and prevents gasket push out
  • Molded rubber coating seals minor irregularities in pan surface
  • One piece design is easier to install and even less prone to leak
  • Direct replacement suitable for all uses – street, racing, heavy duty
  • Include both gasket and new oil pan bolts
  • No Cork Particles
  • Easy Removal For Disassembly
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FEL-PRO Performance – PERFORMANCE OIL PAN GASKET SET (Part No.1817)

PERFORMANCE OIL PAN GASKET SET

from

$29.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material resists crushing and splitting, while providing excellent blowout resistance.
  • With steel core to provide ultimate excellent blowout resistance.
  • Not intended for use in emission controlled vehicles.
See More

Edelbrock – Performer-Plus Camshaft Kit for Ford FE 352-428 V8 (Part No.2106)

Performer-Plus Camshaft Kit for Ford FE 352-428 V8

from

$392.99


Product Features:
  • Designed for Optimum Torque and Acceleration
  • Maximum Performance From Idle through Mid-Range
  • Matched to Edelbrock Performer Intakes
  • Includes Hydraulic Lifters and Assembly Lube
  • Major Improvement in Throttle Response and Torque
  • Use For Daily Drivers/Trucks/Vans/RVs/4x4s
  • Take The Guesswork Out Of Camshaft Selection
See More

Competition Cams – XE Computer Controlled 206/212 Hydraulic Roller Cam K-Kit (Part No.K35-512-8)

XE Computer Controlled 206/212 Hydraulic Roller Cam K-Kit

from

$1215.99
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.

Product Features:
  • Excellent performance in street fuel injected applications.
  • More vacuum allows an increase in duration for improved performance and assists power brakes.
  • Quicker opening lobe profiles deliver increased responsiveness and more area under the lift curve.
  • Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.
See More

Edelbrock – Performer-Plus Camshaft Kit for Small-Block Ford 289-302 V8 (Part No.2122)

Performer-Plus Camshaft Kit for Small-Block Ford 289-302 V8

from

$338.99


Product Features:
  • Designed for Optimum Torque and Acceleration
  • Maximum Performance From Idle through Mid-Range
  • Matched to Edelbrock Performer Intakes
  • Includes Hydraulic Lifters and Assembly Lube
  • Major Improvement in Throttle Response and Torque
  • Use For Daily Drivers/Trucks/Vans/RVs/4x4s
  • Take The Guesswork Out Of Camshaft Selection
See More

Competition Cams – XE Computer Controlled 224/232 Hydraulic Roller Cam and Lifter Kit (Part No.CL35-518-8)

XE Computer Controlled 224/232 Hydraulic Roller Cam and Lifter Kit

from

$867.99
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.

Product Features:
  • Excellent performance in street fuel injected applications.
  • More vacuum allows an increase in duration for improved performance and assists power brakes.
  • Quicker opening lobe profiles deliver increased responsiveness and more area under the lift curve.
  • Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.
See More

Edelbrock – Performer-Link Adjustable True-Roller Timing Chain Set (Part No.7814)

Performer-Link Adjustable True-Roller Timing Chain Set

from

$46.99


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
  • 50 State Street Legal
  • For Engine w/ 2-piece Fuel Pump Eccentric or EFI
See More

Mr. Gasket – Ultra Seal: Valve Cover Gasket Set (Part No.5870)

Ultra Seal: Valve Cover Gasket Set

from

$41.99
Ultra-Seal is Mr. Gasket premium valve cover gasket material. It’s manufactured from a high density cork and rubber blend with a black latex coat applied to the outside to help seal minor flange irregularites and eliminate oil leakage. It creates a positive seal by controlled swelling of the gasket material when exposed to hot oil. For original equipment replacement, high performance street, drag race and oval track use. Sold as a pair. These gaskets are .187 inch thick.

Product Features:
  • Manufactured from high-density cork /rubber blend gasket material
  • A black latex rubber coating is applied to outside of gasket to help seal minor flange irregularities and eliminate the possibility of oil leakage
  • Creates a positive seal by controlled swelling of the gasket material when exposed to hot engine oil
  • For OE replacement, high performance street, drag race and oval track
  • .187″ thick
  • Handles Ex Flange Pressure
  • Forms Leak Proof Seal
  • Black Latex Coating
See More

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1614)

Engine Valve Cover Gasket Set

from

$25.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Die cut silicone rubber gaskets conform to out-of-flat covers
  • Great for on-again/off-again situations
  • Not intended for use in emission controlled vehicles.
See More

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1684)

Engine Valve Cover Gasket Set

from

$50.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Rigid core, molded silicone rubber gaskets provide for ease of installation, and are great for on-again/off-again situations (like setting valve lash).
  • Features high-tech silicone material for long life, a solid steel core for strength and durability, and stainless steel compression limiters to prevent
  • Not intended for use in emission controlled vehicles.
See More

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1613)

Engine Valve Cover Gasket Set

from

$29.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
  • Not intended for use in emission controlled vehicles.
See More

Mr. Gasket – Valve Cover Gasket Set (Part No.276)

Valve Cover Gasket Set

from

$34.99
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.

Product Features:
  • Manufactured from high-density cork/rubber blend gasket material
  • Provides excellent sealing and durability
  • For OE replacement, high performance street, drag race and oval track use
See More

Edelbrock – Intake Manifold Gasket for 1963-1996 Small-Block Fords (Part No.72208)

Intake Manifold Gasket for 1963-1996 Small-Block Fords

from

$174.99
Available in different sizes for many different vehicle models/years. Clean positive seal. Embossed silicone bead surrounding the port. Matched to manifolds and cylinder heads. In the early days of the automotive performance industry, you either ran what

Product Features:
  • Clean positive seal
  • Embossed Silicone Bead Surrounding The Port
  • Matched To Manifolds And Cylinder Heads
  • Fits 1963-96 289/302/351W Engines
  • 10-Pack Of Gaskets
See More

Mr. Gasket – Ultra Seal: Intake Gasket (Part No.5834)

Ultra Seal: Intake Gasket

from

$43.99
Ultra-Seal intake manifold gaskets are manufactured from cellulose/nitrile composition gasket material. Provides excellent sealing and durability. Incorporates Silicone beading around each intake and water outlet port to provide additional sealing strength on both sides of each gasket. No gasket sealer required. For OE replacement, high performance street, drag race and oval track use. Includes manifold end seals and distributor gasket.

Product Features:
  • Manufactured from cellulose/nitrile composition gasket material
  • Provides excellent sealing and durability
  • Silicone beading on both sides of each gasket
  • Complete with manifold end seals and distributor gasket
  • For OE replacement, high performance street, drag race and oval track use
  • Creates Tight Leak proof Seal
See More

FEL-PRO Performance – Lower Intake Manifold Gasket Set: 5 Piece Set (Part No.1246)

Lower Intake Manifold Gasket Set: 5 Piece Set

from

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

Product Features:
  • Fel-Pro performance intake manifold gaskets have been tested with virtually all aftermarket cylinder head and intake manifold combinations.
  • Performance intake manifold gaskets designed without a metal core, to allow engine builders to trim the gasket for exact fit on modified ports.
  • Standard and Low riser
  • Printoseal elastomeric sealing beads to provide extra sealing strength around the intake port.
  • Not intended for use in emission controlled vehicles.
See More

Edelbrock – Intake Manifold Gasket for 1963-1996 Small-Block Fords (Part No.7220)

Intake Manifold Gasket for 1963-1996 Small-Block Fords

from

$30.99


Product Features:
  • Clean Positive Seal
  • Embossed Silicone Bead Surrounding The Port
  • Matched To Manifolds And Cylinder Heads
See More

FEL-PRO Performance – Lower Intake Manifold Gasket Set: 11 Piece Set (Part No.1250)

Lower Intake Manifold Gasket Set: 11 Piece Set

from

$35.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • ENGINEERING EXPERTISE — Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
  • REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
See More

Most Popular Performance Engine Valve Cover Gasket Sets for 1966 Mercury Capris

Enhance your 1966 Mercury Capri with one of the 4 Performance Engine Valve Cover Gasket Sets we have in stock, starting at just $25.49.

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1684)

Engine Valve Cover Gasket Set

from

$50.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Product Features:
  • Rigid core, molded silicone rubber gaskets provide for ease of installation, and are great for on-again/off-again situations (like setting valve lash).
  • Features high-tech silicone material for long life, a solid steel core for strength and durability, and stainless steel compression limiters to prevent
  • Not intended for use in emission controlled vehicles.
See More

Mr. Gasket – Valve Cover Gasket Set (Part No.276)

Valve Cover Gasket Set

from

$34.99
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.

Product Features:
  • Manufactured from high-density cork/rubber blend gasket material
  • Provides excellent sealing and durability
  • For OE replacement, high performance street, drag race and oval track use
See More

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1614)

Engine Valve Cover Gasket Set

from

$25.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Die cut silicone rubber gaskets conform to out-of-flat covers
  • Great for on-again/off-again situations
  • Not intended for use in emission controlled vehicles.
See More

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1613)

Engine Valve Cover Gasket Set

from

$29.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
  • Not intended for use in emission controlled vehicles.
See More

Best-Selling 1966 Mercury Capri Performance Engine Intake Manifold Gaskets

Upgrade your Capri with one of our 2 best-selling Performance Engine Intake Manifold Gaskets, earning an average 5 stars rating across 4 reviews.

FEL-PRO Performance – Lower Intake Manifold Gasket Set: 11 Piece Set (Part No.1250)

Lower Intake Manifold Gasket Set: 11 Piece Set

from

$35.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • ENGINEERING EXPERTISE — Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
  • REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
See More

FEL-PRO Performance – Lower Intake Manifold Gasket Set: 5 Piece Set (Part No.1246)

Lower Intake Manifold Gasket Set: 5 Piece Set

from

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

Product Features:
  • Fel-Pro performance intake manifold gaskets have been tested with virtually all aftermarket cylinder head and intake manifold combinations.
  • Performance intake manifold gaskets designed without a metal core, to allow engine builders to trim the gasket for exact fit on modified ports.
  • Standard and Low riser
  • Printoseal elastomeric sealing beads to provide extra sealing strength around the intake port.
  • Not intended for use in emission controlled vehicles.
See More

Top-Quality Performance Engine Coolant Thermostats for 1966 Mercury Capris

Choose a high-quality OEM or aftermarket Performance Engine Coolant Thermostat for Mercury Capris and enjoy top-notch performance from $29.49.

Mr. Gasket – High Performance 180 Degree Thermostat for Increased Flow (Part No.4364)

High Performance 180 Degree Thermostat for Increased Flow

from

$29.99
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.

Product Features:
  • Opens At 180 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
See More

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

High Performance Thermostat - 160 Degree Brass & Copper

from

$29.49
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 160 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
See More

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

High Performance Thermostat

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.

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
See More

Top Picks for 1966 Mercury Capri Performance Engine Cylinder Head Gaskets

Invest in one of our 2 durable Performance Engine Cylinder Head Gaskets for your 1966 Mercury, knowing you’re getting trusted brands and expert craftsmanship.

FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1011-1)

Cylinder Head Gasket: Steel Core Composite, Without Head Bolts

from

$52.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • PROPRIETARY COATING – Nonstick anti-friction coating seals small surface imperfections
  • NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
  • SUPERIOR SEAL – Precise embossed Printoseal sealing beads at all vital areas to eliminate leak paths
  • 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

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.
See More

Performance Intake Manifolds for 1966 Mercury Capris

Make a smart move for your 1966 Mercury Capri with products all priced from $314.99 to $454.99.

Edelbrock – Performer 289 Intake Manifold for Small-Block Ford (Part No.2121)

Performer 289 Intake Manifold for Small-Block Ford

from

$314.99


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
  • Available in Multiple Finishes
See More

Edelbrock – Performer RPM Ford Small Block 302 Intake Manifold (Part No.7121)

Performer RPM Ford Small Block 302 Intake Manifold

from

$359.99


Product Features:
  • Best for the Ultimate in Street High-Performance
  • Designed for 1500 to 6500 RPM Street-Driven Power
  • Dual-Plane High-Rise Intake w/180 deg Firing Order
  • Produces Incredible Top-End Horsepower
  • Retains Good Throttle Response and Acceleration
  • Larger Plenum and Runners Maximizes Other Upgrades
See More

Edelbrock – RPM Air-Gap #7521 Intake Manifold for Small-Block Ford 302-331-347 V8 (Part No.7521)

RPM Air-Gap #7521 Intake Manifold for Small-Block Ford 302-331-347 V8

from

$454.99
Edelbrock Part #7521 RPM Air-Gap intake manifold is designed for the small-block 302 CID Ford V8 or 331-347 stroker applications. The RPM Air-Gap incorporates the same race-winning technology that?s been used on our Victor Series competition intakes and i

Product Features:
  • RPM Air-Gap for 302-331-347 Small-Block Ford V8
  • Air-Gap design features an open air space under the plenum
  • Separates fuel and air from engine heat
  • Larger runners over standard 7121 manifold
  • Includes nitrous bosses
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Top-Rated Performance Engine Brands For Your 1966 Mercury Capri

When it comes to finding the perfect Performance Engine for your 1966 Mercury Capri, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 4 trusted brands. We carry the most popular Performance Engine brands including Edelbrock and FEL-PRO Performance, and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $35.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1966 Mercury Capri, providing peace of mind with parts that meet or exceed OEM standards.

Popular Edelbrock 1966 Mercury Capri Performance Engines

If you’re looking for a top-quality Performance Engine for your 1966 Mercury Capri, Advance Auto Parts has exactly what you need with our selection of Edelbrock Performance Engines. We have 1 Edelbrock Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $392.99, you’ll find the perfect Performance Engine for your needs and budget. Edelbrock Performance Engines for the 1966 Mercury Capri come highly rated, with over 1 customer reviews and an impressive average rating of 4.4 stars. Choosing a Edelbrock Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Performer-Plus Camshaft Kit for Ford FE 352-428 V8
from $392.99
(1)
Performer-Plus Camshaft Kit for Ford FE 352-428 V8
“1964 Ford Galaxie 500 352ci FE Big Block. Edelbrock says to use the Performer-Plus Camshaft part #2106 to increase performance, but Advanced Auto(you)”

Top-Quality FEL-PRO Performance 1966 Mercury Capri Performance Engines

For those in search of a high-quality Performance Engine for their 1966 Mercury Capri, Advance Auto Parts offers a great selection of FEL-PRO Performance Performance Engines. With 3 FEL-PRO Performance Performance Engines in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Performance Engines start at just $35.99, with an average price of $46.66, giving you a range of options to suit your budget. Backed by over 7 customer ratings and an average rating of 4.2 stars, FEL-PRO Performance Performance Engines provide both reliability and excellent performance. Choosing a FEL-PRO Performance Performance Engine from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Engine Valve Cover Gasket Set
from $50.99
(1)
Engine Valve Cover Gasket Set
“good”
Lower Intake Manifold Gasket Set: 11 Piece Set
from $35.99
(4)
Lower Intake Manifold Gasket Set: 11 Piece Set
“Great overall intake gasket!!”
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
from $52.99
(2)
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
“cometic head gasket is great but prob is dose not seal if the block isn’t mirror finished. many people switch over to felpro and it has worked out gre”

FAQs for 1966 Mercury Capri Performance Engines

What are the best-selling Performance Engines for 1966 Mercury Capris?

Out of 19 Performance Engines that fit 1966 Mercury Capris, the following parts are the top sellers:

What’s the price range for 1966 Mercury Capri Performance Engines?

The prices of Performance Engines for the 1966 Mercury Capri range from $13.99 up to $454.99 for the most premium parts.

What is the average price of a Performance Engine for a 1966 Mercury Capri?

The average price for Performance Engines for the 1966 Mercury Capri is $134.87. 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 Capri model years?

Yes, we carry Performance Engines for 15 model years of Mercury Capris between 1967 and 1986. The following model years are the most popular for Performance Engine purchases: 1986, 1985, 1984, 1983, 1982, 1981, 1980, 1979, and 1977.

What are the cheapest Performance Engines for my 1966 Mercury Capri?

The cheapest 1966 Mercury Capri Performance Engines we carry are:

Does Advance Auto Parts sell Performance Engines for any other 1966 Mercury models?

Yes. We stock Performance Engines for 11 other popular 1966 Mercury models. Some of the most popular are 1966 Monterey Performance Engines, 1966 Marauder Performance Engines, 1966 Colony Park Performance Engines, 1966 Villager Performance Engines, and 1966 Comet Performance Engines.

What are the top-rated Performance Engines that fit the 1966 Mercury Capri?

The one 1966 Mercury Capri Performance Engine we have in stock is the High Energy Hydraulic Flat Lifter for Ford 352-428, 144-250 and 2600-2800cc V6.. It costs $13.99.

What types of Performance Engines do you sell for my 1966 Mercury Capri?

As of 11/2/25, these are some of the most in-demand types of Performance Engines for a 1966 Mercury Capri:

Can I get help with 1966 Mercury Capri 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 Capri Performance Engines?

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