1978 AMC Pacer Performance Engines

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Keep Your 1978 AMC Pacer 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 1978 AMC Pacer looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Engine Valve Stem Seal Sets, Performance Engine Rocker Arms, and Performance Intake Manifolds. 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 1 reviews and a solid 5 star average, you can shop with confidence knowing other AMC Pacer 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 Ignition Products. At Advance Auto Parts, we’re here to help you keep your 1978 AMC Pacer in peak condition, inside and out.

Essential 1978 AMC Pacer Performance Engines

Edelbrock – Water Pump AMC Long Style 1973-Later (Part No.8832)

Water Pump AMC Long Style 1973-Later

from

$365.99
Edelbrock #8832 Water Pump AMC long style 1973-later ideal to prevent overheating in street rods and street machines, as well as in tow rigs and motorhomes. Using state-of-the-art racing technology, Edelbrock has designed these “super cooling” Water Pumps

Product Features:
  • Standard Impeller Rotation
  • 0.625 in. Pilot Shaft
  • 0.750 in. Ball/Ball Bearing
  • 4.1875 in. Block To Hub Height
  • Satin Finish
See More

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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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
See More

Edelbrock – RPM Air-Gap AMC 304/360/401 Intake Manifold (Part No.7531)

RPM Air-Gap AMC 304/360/401 Intake Manifold

from

$530.99
Edelbrock part #7531 RPM Air-Gap AMC intake manifold is designed for 1970-91 304-401 c.i.d. V8 applications. The RPM Air-Gap intake manifold incorporate the same race-winning technology as our Victor Series competition intakes. The air-gap design features

Product Features:
  • Based on Performer RPM-Series with Unique Air Gap
  • Air Gap Cooler and Denser Mixture for More Power
  • 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
  • Includes Std Oil Fill ; PCV ; A/C Accy Bosses
  • Not for Exhaust-Heat Chokes – No Exhaust Crossover
See More

Edelbrock – Performer EGR AMC Intake Manifold (Part No.3731)

Performer EGR AMC Intake Manifold

from

$509.99


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
See More

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
See More

Most Popular Performance Engine Valve Stem Seal Set for 1978 AMC Pacers

Enhance your 1978 AMC Pacer with this popular Performance Engine Valve Stem Seal Set we have in stock, for $33.99.

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
See More

Best-Selling 1978 AMC Pacer Performance Engine Rocker Arms

Upgrade your Pacer with one of our 4 best-selling Performance Engine Rocker Arms.

Competition Cams – RKRS AMC PED (Part No.1210-16)

RKRS AMC PED

from

$225.99
RKRS AMC PED

Competition Cams – ENGINE ROCKER ARM (Part No.1832-1)

ENGINE ROCKER ARM

from

$61.99
ENGINE ROCKER ARM

Competition Cams – High Energy Rocker with 1.6 Ratio for ’74-’79 AMC with Pedestal Mount (Part No.1210-2)

High Energy Rocker with 1.6 Ratio for '74-'79 AMC with Pedestal Mount

from

$34.99
Four decades after its founding, COMP Cams keeps its focus on producing the highest-performing products possible, providing superior customer service and leading the industry in technological development. That commitment continues to resonate with racers, engine builders and enthusiasts worldwide, making COMP Cams the preferred choice for valve train components. COMP Cams is unrivaled thanks to its engineering staff – the largest and most highly trained in the performance aftermarket industry – sophisticated manufacturing processes, expert technicians and real-world testing on the track and street. The company’s integration of research, engineering and development, coupled with the free technical assistance it offers customers, makes it the Absolute Leader in Valve Train Technology.
See More

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

ENGINE ROCKER ARM

from

$31.99
ENGINE ROCKER ARM

Top-Quality Performance Intake Manifolds for 1978 AMC Pacers

Choose a high-quality OEM or aftermarket Performance Intake Manifold for AMC Pacers and enjoy top-notch performance from $509.99.

Edelbrock – Performer EGR AMC Intake Manifold (Part No.3731)

Performer EGR AMC Intake Manifold

from

$509.99


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
See More

Edelbrock – RPM Air-Gap AMC 304/360/401 Intake Manifold (Part No.7531)

RPM Air-Gap AMC 304/360/401 Intake Manifold

from

$530.99
Edelbrock part #7531 RPM Air-Gap AMC intake manifold is designed for 1970-91 304-401 c.i.d. V8 applications. The RPM Air-Gap intake manifold incorporate the same race-winning technology as our Victor Series competition intakes. The air-gap design features

Product Features:
  • Based on Performer RPM-Series with Unique Air Gap
  • Air Gap Cooler and Denser Mixture for More Power
  • 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
  • Includes Std Oil Fill ; PCV ; A/C Accy Bosses
  • Not for Exhaust-Heat Chokes – No Exhaust Crossover
See More

Our Top Pick for a 1978 AMC Pacer Performance Engine Water Pump

Invest in a durable Performance Engine Water Pump for your 1978 AMC, knowing you’re getting trusted brands and expert craftsmanship.

Edelbrock – Water Pump AMC Long Style 1973-Later (Part No.8832)

Water Pump AMC Long Style 1973-Later

from

$365.99
Edelbrock #8832 Water Pump AMC long style 1973-later ideal to prevent overheating in street rods and street machines, as well as in tow rigs and motorhomes. Using state-of-the-art racing technology, Edelbrock has designed these “super cooling” Water Pumps

Product Features:
  • Standard Impeller Rotation
  • 0.625 in. Pilot Shaft
  • 0.750 in. Ball/Ball Bearing
  • 4.1875 in. Block To Hub Height
  • Satin Finish
See More

Our Performance Engine Coolant Thermostats for 1978 AMC Pacers

Make a smart move for your 1978 AMC Pacer with our Performance Engine Coolant Thermostat for $32.49.

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
See More

Top-Rated Performance Engine Brands For Your 1978 AMC Pacer

When it comes to finding the perfect Performance Engine for your 1978 AMC Pacer, 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 1978 AMC Pacer, providing peace of mind with parts that meet or exceed OEM standards.

Popular Competition Cams 1978 AMC Pacer Performance Engines

If you’re looking for a top-quality Performance Engine for your 1978 AMC Pacer, 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 1978 AMC Pacer 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 1978 AMC Pacer Performance Engines

What are the best-selling Performance Engines for 1978 AMC Pacers?

Out of 29 Performance Engines that fit 1978 AMC Pacers, the following parts are the top sellers:

What’s the price range for 1978 AMC Pacer Performance Engines?

The prices of Performance Engines for the 1978 AMC Pacer range from $7.99 up to $858.99 for the most premium parts.

What is the average price of a Performance Engine for a 1978 AMC Pacer?

The average price for Performance Engines for the 1978 AMC Pacer is $303.59. 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 Pacer model years?

Yes, we carry Performance Engines for 4 model years of AMC Pacers between 1975 and 1980. The following model years are the most popular for Performance Engine purchases: 1980, 1979, 1977, 1976, and 1975.

What are the cheapest Performance Engines for my 1978 AMC Pacer?

The cheapest 1978 AMC Pacer Performance Engines we carry are:

Does Advance Auto Parts sell Performance Engines for any other 1978 AMC models?

Yes. We stock Performance Engines for 3 other popular 1978 AMC models. Some of the most popular are 1978 Gremlin Performance Engines, 1978 AMX Performance Engines, 1978 Matador Performance Engines, and 1978 Concord Performance Engines.

What are the top-rated Performance Engines that fit the 1978 AMC Pacer?

The one 1978 AMC Pacer 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 1978 AMC Pacer?

As of 3/1/26, these are some of the most in-demand types of Performance Engines for a 1978 AMC Pacer:

Can I get help with 1978 AMC Pacer 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 Pacer Performance Engines?

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