The AMC Gremlin, a subcompact car produced from 1970 to 1976, is perhaps as well known for its distinctive (some might say polarizing) styling as it is for the variety of engines that powered it. Far from being a one-size-fits-all solution, the Gremlin offered buyers a surprising range of engine choices, from economical inline-sixes to surprisingly potent V8s. Understanding these engine options provides valuable insight into the car’s performance characteristics and its place in automotive history. This article delves into the specifics of the Gremlin’s engine lineup, outlining their key features and performance capabilities.

Gremlin Engine Lineup: A Detailed Overview

Throughout its production run, the AMC Gremlin was available with several different engine options. Here’s a breakdown:

Engine Type	Displacement	Horsepower	Years Available	Key Features
Inline-Six	199 cu in (3.3 L)	128 hp	1970-1971	Base engine, relatively fuel-efficient.
Inline-Six	232 cu in (3.8 L)	135-150 hp (depending on year)	1970-1976	Improved performance over the 199 cu in.
V8	304 cu in (5.0 L)	210 hp (gross), 150 hp (net)	1972-1976	Most powerful option, significantly improved acceleration.
Inline-Four (VW/Audi)	121 cu in (2.0 L)	90 hp	1977-1979 (Gremlin X & Concord)	Added to the Gremlin X and Concord, for better fuel efficiency.

Inline-Six Power: The Backbone of the Gremlin

The inline-six engines were the most common choices for Gremlin buyers. The 199 cubic inch version provided adequate power for everyday driving, while the larger 232 cubic inch offered a noticeable improvement in performance. These engines were known for their reliability and relatively smooth operation.

• Smooth and reliable performance.
• Good fuel economy for the era (especially the 199 cu in).
• Relatively easy to maintain.

V8 Option: Unleashing the Gremlin’s Potential

For those seeking more excitement, the 304 cubic inch V8 offered a substantial boost in performance. This engine transformed the Gremlin from an economy car into something surprisingly quick. However, fuel economy suffered significantly.

V8 Performance Figures

1. Improved acceleration and top speed.
2. Distinctive V8 sound.
3. Increased weight and slightly altered handling.

Gremlin Engine Issues and Considerations

While generally reliable, the Gremlin engines were not without their quirks. Early models with the 199 cubic inch inline-six could feel underpowered, especially when equipped with the automatic transmission. The V8, while powerful, could overwhelm the car’s chassis. Proper maintenance is crucial for all Gremlin engines to ensure longevity.

FAQ About the AMC Gremlin Engine

Q: Which Gremlin engine is the most reliable?

A: The 232 cubic inch inline-six is generally considered the most reliable option due to its robust design and readily available parts.

Q: How can I improve the performance of my Gremlin’s engine?

A: Performance upgrades can include installing an aftermarket carburetor, exhaust system, and intake manifold. However, be mindful of maintaining reliability.

Q: Are parts readily available for Gremlin engines?

A: Parts availability varies depending on the specific engine. Inline-six parts are generally easier to find than V8 parts. Specialty AMC parts suppliers are a valuable resource.

Q: Was there a 4-cylinder engine offered in the Gremlin?

A: While the original Gremlin models didn’t have a 4-cylinder, later models like the Gremlin X and Concord featured a 2.0L inline-four engine sourced from VW/Audi to improve fuel efficiency.

The AMC Gremlin offered a diverse range of engine options, each catering to different priorities and driving styles. From the economical inline-sixes to the surprisingly potent V8, the Gremlin’s engine lineup played a significant role in its quirky appeal. Understanding these engine options allows enthusiasts to appreciate the Gremlin’s unique place in automotive history and to make informed decisions when considering a restoration or modification project. Ultimately, the choice of engine reflects the individual owner’s preference for fuel economy, performance, or a combination of both. The Gremlin’s engine variety is a testament to AMC’s willingness to experiment and offer a range of choices to its customers. And while not every choice was a resounding success, they all contributed to the Gremlin’s enduring legacy as a truly unique and unforgettable American car.

Tips for Maintaining Your Classic Gremlin Engine

Owning a classic AMC Gremlin is a rewarding experience, but it also requires diligent maintenance, particularly when it comes to the engine. Here are some tips to keep your Gremlin’s heart beating strong:

• Regular Oil Changes: Use high-quality oil and change it according to the manufacturer’s recommendations, or even more frequently if you drive your Gremlin hard or in harsh conditions. Consider using oil specifically formulated for older vehicles.
• Cooling System Maintenance: Overheating is a common issue in older cars. Regularly check your coolant level, inspect hoses for cracks or leaks, and flush the cooling system every few years. Consider upgrading to a more efficient radiator if you frequently experience overheating.
• Ignition System Tune-Ups: Keep your spark plugs, distributor cap, and rotor in good condition. Replace them as needed to ensure proper ignition timing and optimal performance. Consider an electronic ignition conversion for improved reliability.
• Fuel System Inspection: Inspect fuel lines for leaks and replace the fuel filter regularly. Clean or rebuild the carburetor if you experience rough idling or poor fuel economy. Be mindful of ethanol in modern gasoline, which can degrade older fuel system components. Consider using fuel stabilizers.
• Monitor Engine Sounds: Pay attention to any unusual noises coming from the engine. Knocking, ticking, or hissing sounds could indicate underlying problems that need attention. Early detection can prevent more serious and costly repairs.
• Check for Leaks: Regularly inspect the engine for oil, coolant, or fuel leaks. Address leaks promptly to prevent fluid loss and potential engine damage.
• Proper Storage: If you plan to store your Gremlin for an extended period, prepare the engine by adding fuel stabilizer to the gas tank, changing the oil, and disconnecting the battery. This will help prevent corrosion and other issues that can arise during storage.

Upgrading for Performance and Reliability

While maintaining originality is often a priority for classic car owners, certain upgrades can significantly improve the performance and reliability of your Gremlin’s engine:

• Electronic Ignition Conversion: Replacing the points-based ignition system with an electronic ignition system provides more consistent spark and eliminates the need for frequent adjustments.
• Aluminum Radiator: An aluminum radiator offers better cooling efficiency than the original copper/brass radiator, which is especially beneficial if you live in a hot climate or drive your Gremlin hard.
• Fuel Injection Conversion: Swapping the carburetor for a fuel injection system can improve fuel economy, drivability, and cold starting.
• Modern Alternator: Upgrading to a modern alternator provides more reliable charging and can support the increased electrical demands of modern accessories.

Finding Expertise and Resources

Working on a classic car engine requires specialized knowledge and skills; Consider these resources:

• AMC Enthusiast Clubs: Join an AMC enthusiast club to connect with other owners and access valuable information, technical advice, and parts resources.
• Specialty AMC Mechanics: Seek out mechanics who specialize in AMC vehicles. They will have the knowledge and experience to properly diagnose and repair your Gremlin’s engine.
• Online Forums and Communities: Participate in online forums and communities dedicated to AMC vehicles. These platforms are a great source of information, troubleshooting tips, and parts leads.
• Service Manuals and Technical Literature: Invest in a factory service manual for your Gremlin. These manuals provide detailed information on engine specifications, repair procedures, and troubleshooting.

By following these advisory tips and staying proactive with maintenance, you can ensure that your AMC Gremlin’s engine continues to provide reliable and enjoyable performance for years to come. Remember that preserving a classic is a continuous process, and a well-maintained engine is the heart of a happy Gremlin.