1968 AMC Javelin Performance Engines

Keep Your 1968 AMC Javelin 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 1968 AMC Javelin looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Intake Manifold Hardware, Performance Engine Rocker Arms, 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 Competition Cams. For example, Competition Cams Performance Engines start at just $33.99 with an average 4.1 star rating. With over 852 reviews and a solid 4 star average, you can shop with confidence knowing other AMC Javelin owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1968 AMC Javelin Performance Engine at Advance Auto Parts is around $241.89, with a range that starts at $7.99 and goes up to $1,414.99. With 42 options in stock from 3 trusted brands, finding the right fit is easy. Popular picks like High Performance Thermostat, Intake Manifold Bolt Set – Chevrolet Small Block – Socket Head 3/8"-16 X 1" Bolts & Washers, and Engine Gasket Set (Head / Intake / Exhaust / Valve Cover) for AMC/Jeep start at just $20.99 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 Distributors and Performance Fuel Systems. At Advance Auto Parts, we’re here to help you keep your 1968 AMC Javelin in peak condition, inside and out.

Find Your Specific 1968 AMC Javelin Performance Engines

Looking for the perfect Performance Engine for your 1968 AMC Javelin? You’re in the right place. Below, you’ll find links to various types of Performance Engines that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Performance Engines, ensuring durability and a precise fit for your AMC Javelin. Whether you’re driving a 1968 model or another popular model year like 1969, 1970, 1971, 1972, 1973, and 1974, we’ve got you covered. Purchasing Performance Engines from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Performance Engines that fit your vehicle.

Essential 1968 AMC Javelin Performance Engines

Edelbrock – Engine Gasket Set (Head / Intake / Exhaust / Valve Cover) for AMC/Jeep (Part No.7372)

Engine Gasket Set (Head / Intake / Exhaust / Valve Cover) for AMC/Jeep

from

$179.99
The Edelbrock #7372?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

Product Features:
  • Head: 4.275″ Bore/0.045″ Thick/10.60cc Vol.
  • Intake: 1.13″x2.21″ Port/.030″ Thick
  • Exhaust: 1.80″x1.30″ Port
  • 3/16″ Valve Cover
  • Multi Piece Configuration
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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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(1 reviews)
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Edelbrock – Pushrod Set for AMC 343-401 (Part No.9637)

Pushrod Set for AMC 343-401

from

$217.99
Product Features:
  • Case-Hardened Tubing
  • Surface Hardening
  • Welded Ends
  • 0.3125 in. Diameter
  • Use with or without Hardened Steel Guideplates
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Edelbrock – RPM AMC/ Jeep Cylinder Head With Exhaust Crossover Complete (Part No.60139)

RPM AMC/ Jeep Cylinder Head With Exhaust Crossover Complete

from

$1414.99
Product Features:
  • Complete Single For Flat Tappet (With Crossover Port)
  • 54cc Combustion Chamber Volume
  • 185cc Intake/70cc Exhaust Runner Volume
  • 2.02 in. Intake/1.6 in. Exhaust Valve Diameter
  • 0.625 in. Deck Thickness
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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
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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

(12 reviews)
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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

(20 reviews)
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Mr. Gasket – Intake Manifold Bolt Set – Chevrolet Small Block – Socket Head 3/8"-16 X 1" Bolts & Washers (Part No.956G)

Intake Manifold Bolt Set - Chevrolet Small Block - Socket Head 3/8"-16 X 1" Bolts & Washers

from

$20.99
These grade 5 hex head bolts are brite zinc plated for protection and appearance. Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds. Includes twelve (12) 3/8 inch-16 x 1 inch bolts & washers

Product Features:
  • Zinc plated to resist corrosion and provide a clean professional appearance
  • Made from Grade 5 steel for strength and durability
  • Flat washers provide uniform clamp load and prevent galling on aluminum intake manifolds
  • Allen (socket) Head
  • Zinc Plated For Protection
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Mr. Gasket – Oilpangasketset (Part No.890)

Oilpangasketset

from

$48.99
Manufactured from high-density cork/rubber blend gasket material. Provides excellent sealing and durability. Complete with molded rubber front/rear oil pan seals where applicable. For original equipment replacement and high performance street.

Product Features:
  • Manufactured from high-density cork /rubber blend gasket material
  • Provides excellent sealing and durability
  • Complete with molded rubber front/rear oil pan end seals where applicable
  • For OE replacement and high performance street use
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Popular 1968 AMC Javelin Performance Engines Categories

Performance Engine Coolant Thermostats
Performance Engine Coolant Thermostats
Performance Engine Cylinder Head Gaskets
Performance Engine Cylinder Head Gaskets
Performance Engine Camshaft and Lifter Kits
Performance Engine Camshaft and Lifter Kits
Performance Engine Timing Sets and Components
Performance Engine Timing Sets and Components
Performance Engine Valve Springs
Performance Engine Valve Springs
Performance Engine Rocker Arms
Performance Engine Rocker Arms
Performance Engine Oil Pan Gaskets
Performance Engine Oil Pan Gaskets
Performance Intake Manifold Hardware
Performance Intake Manifold Hardware
Performance Engine Valve Lifters
Performance Engine Valve Lifters
Performance Engine Push Rods
Performance Engine Push Rods
Performance Engine Valve Spring Retainer
Performance Engine Valve Spring Retainer
Performance Engine Cylinder Heads
Performance Engine Cylinder Heads
Performance Engine Valve Stem Seal Sets
Performance Engine Valve Stem Seal Sets

Most Popular Performance Intake Manifold Hardware for 1968 AMC Javelins

Enhance your 1968 AMC Javelin with this popular Performance Intake Manifold Hardware we have in stock, for $20.99.
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Mr. Gasket – Intake Manifold Bolt Set – Chevrolet Small Block – Socket Head 3/8"-16 X 1" Bolts & Washers (Part No.956G)

Intake Manifold Bolt Set - Chevrolet Small Block - Socket Head 3/8"-16 X 1" Bolts & Washers

from

$20.99
These grade 5 hex head bolts are brite zinc plated for protection and appearance. Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds. Includes twelve (12) 3/8 inch-16 x 1 inch bolts & washers

Product Features:
  • Zinc plated to resist corrosion and provide a clean professional appearance
  • Made from Grade 5 steel for strength and durability
  • Flat washers provide uniform clamp load and prevent galling on aluminum intake manifolds
  • Allen (socket) Head
  • Zinc Plated For Protection
See More
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Best-Selling 1968 AMC Javelin Performance Engine Rocker Arms

Upgrade your Javelin with one of our 8 best-selling Performance Engine Rocker Arms.
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Competition Cams – ENGINE ROCKER ARM (Part No.1832-16)

ENGINE ROCKER ARM

from

$649.99
ENGINE ROCKER ARM
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Competition Cams – Magnum Rocker Arm and Pushrod Kit for AMC 290-401 (Part No.RPM1410-16)

Magnum Rocker Arm and Pushrod Kit for AMC 290-401

from

$517.99
Magnum Rocker Arm and Pushrod Kit for AMC 290-401
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Competition Cams – ENGINE ROCKER ARM (Part No.17044-16)

ENGINE ROCKER ARM

from

$277.99
ENGINE ROCKER ARM
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Competition Cams – ENGINE ROCKER ARM (Part No.1442-16)

ENGINE ROCKER ARM

from

$241.99
ENGINE ROCKER ARM
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Competition Cams – HIGH ENRGY ALUM ROCK (Part No.17044-8)

HIGH ENRGY ALUM ROCK

from

$148.99
HIGH ENRGY ALUM ROCK
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Competition Cams – ENGINE ROCKER ARM (Part No.1832-1)

ENGINE ROCKER ARM

from

$61.99
ENGINE ROCKER ARM
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Competition Cams – ENGINE ROCKER ARM (Part No.1442-1)

ENGINE ROCKER ARM

from

$31.99
ENGINE ROCKER ARM
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Competition Cams – ENGINE ROCKER ARM (Part No.17044-1)

ENGINE ROCKER ARM

from

$27.99
ENGINE ROCKER ARM
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Top-Quality Performance Engine Coolant Thermostats for 1968 AMC Javelins

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

(20 reviews)
View Product

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

(12 reviews)
View Product

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
View Product

Our Top Pick for a 1968 AMC Javelin Performance Engine Cylinder Head Gasket

Invest in a durable Performance Engine Cylinder Head Gasket for your 1968 AMC, knowing you’re getting trusted brands and expert craftsmanship.
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Edelbrock – Engine Gasket Set (Head / Intake / Exhaust / Valve Cover) for AMC/Jeep (Part No.7372)

Engine Gasket Set (Head / Intake / Exhaust / Valve Cover) for AMC/Jeep

from

$179.99
The Edelbrock #7372?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

Product Features:
  • Head: 4.275″ Bore/0.045″ Thick/10.60cc Vol.
  • Intake: 1.13″x2.21″ Port/.030″ Thick
  • Exhaust: 1.80″x1.30″ Port
  • 3/16″ Valve Cover
  • Multi Piece Configuration
See More
View Product

Our Performance Engine Oil Pan Gaskets for 1968 AMC Javelins

Make a smart move for your 1968 AMC Javelin with our Performance Engine Oil Pan Gasket for $48.99.
show more show less

Mr. Gasket – Oilpangasketset (Part No.890)

Oilpangasketset

from

$48.99
Manufactured from high-density cork/rubber blend gasket material. Provides excellent sealing and durability. Complete with molded rubber front/rear oil pan seals where applicable. For original equipment replacement and high performance street.

Product Features:
  • Manufactured from high-density cork /rubber blend gasket material
  • Provides excellent sealing and durability
  • Complete with molded rubber front/rear oil pan end seals where applicable
  • For OE replacement and high performance street use
See More
View Product

Top-Rated Performance Engine Brands For Your 1968 AMC Javelin

When it comes to finding the perfect Performance Engine for your 1968 AMC Javelin, 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 4.1 stars) and competitive prices, as low as $33.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1968 AMC Javelin, providing peace of mind with parts that meet or exceed OEM standards.

Popular Competition Cams 1968 AMC Javelin Performance Engines

If you’re looking for a top-quality Performance Engine for your 1968 AMC Javelin, 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 $33.99, you’ll find the perfect Performance Engine for your needs and budget. Competition Cams Performance Engines for the 1968 AMC Javelin come highly rated, with over 1 customer reviews and an impressive average rating of 4.1 stars. Choosing a Competition Cams Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
VALVE SEALS, TEFLON 3/8" 1 ST
from $33.99
(1)
VALVE SEALS, TEFLON 3/8" 1 ST
“As good as OEM.”

FAQs for 1968 AMC Javelin Performance Engines

What are the best-selling Performance Engines for 1968 AMC Javelins?

Out of 42 Performance Engines that fit 1968 AMC Javelins, the following parts are the top sellers:

What’s the price range for 1968 AMC Javelin Performance Engines?

The prices of Performance Engines for the 1968 AMC Javelin range from $7.99 up to $1,414.99 for the most premium parts.

What is the average price of a Performance Engine for a 1968 AMC Javelin?

The average price for Performance Engines for the 1968 AMC Javelin is $241.89. 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 AMC Javelin model years?

Yes, we carry Performance Engines for 5 model years of AMC Javelins between 1969 and 1974. The following model years are the most popular for Performance Engine purchases: 1974, 1973, 1972, 1971, 1970, and 1969.

What are the cheapest Performance Engines for my 1968 AMC Javelin?

The cheapest 1968 AMC Javelin Performance Engines we carry are:

Does Advance Auto Parts sell Performance Engines for any other 1968 AMC models?

Yes. We stock Performance Engines for 3 other popular 1968 AMC models. Some of the most popular are 1968 AMX Performance Engines, 1968 Ambassador Performance Engines, 1968 Rebel Performance Engines, and 1968 American Performance Engines.

What are the top-rated Performance Engines that fit the 1968 AMC Javelin?

The one 1968 AMC Javelin Performance Engine we have in stock is the High Energy 7.794" Long, 5/16" Diameter Pushrod. It costs $7.99.

What types of Performance Engines do you sell for my 1968 AMC Javelin?

As of 11/2/25, these are some of the most in-demand types of Performance Engines for a 1968 AMC Javelin:

Can I get help with 1968 AMC Javelin Performance Engine orders?

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

What is your return policy for AMC Javelin Performance Engines?

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

More Popular Parts for All Makes