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How much horsepower does a 1978 Mustang 2 have?


The 1978 Mustang II is a classic vehicle that holds a special place in the hearts of car

As the owner of Kevin's Autos, an auto service and repair shop with years of experience, I'm often asked about the performance specifications of classic cars. One model that frequently comes up is the 1978 Ford Mustang II, a compact and fuel-efficient version of the iconic Mustang muscle car. In this article, I'll dive into the details of the 1978 Mustang II's horsepower and provide some context around its performance capabilities.


The 1978 Mustang II's Engine Specifications


The 1978 Ford Mustang II was available with a few different engine options, but the most common was the 2.3-liter inline four-cylinder engine. This engine was rated at 88 horsepower when equipped with a manual transmission, or 85 horsepower when paired with an automatic transmission.


It's important to note that the Mustang II was a significant departure from the powerful, high-displacement V8 engines that had defined the Mustang lineup in the 1960s and early 1970s. The shift to a smaller, more fuel-efficient four-cylinder engine was a response to the oil crisis of the 1970s and the increasing demand for more economical vehicles.


Comparing the Mustang II to Other Muscle Cars


While the 1978 Mustang II's 88 horsepower may seem underwhelming compared to the muscle car era, it's important to put it in context. During this time, many other popular sports and muscle cars were also downsizing their engines to meet stricter emissions and fuel economy regulations.



  • The 1978 Chevrolet Camaro with a 3.8-liter V6 engine produced just 105 horsepower.

  • The 1978 Pontiac Firebird with a 4.9-liter V8 engine produced 135 horsepower.

  • The 1978 Dodge Challenger with a 5.2-liter V8 engine produced 150 horsepower.


So while the 1978 Mustang II may not have been a powerhouse, it was still competitive within the context of the automotive landscape at the time.


Improving the Mustang II's Performance


For those looking to extract more performance from their 1978 Mustang II, there are a few modifications that can be made. Some common upgrades include:



  • Replacing the stock carburetor with a more efficient fuel injection system

  • Upgrading the exhaust system to improve airflow and reduce backpressure

  • Swapping the engine for a larger displacement four-cylinder or even a V6 or V8 engine


With the right modifications, it's possible to significantly increase the horsepower and overall performance of a 1978 Mustang II, making it a more engaging and enjoyable driving experience.

Frequently Asked Questions

How much horsepower does a 1978 Ford 302 have?


Ford 302 Engine History
It was equipped with a standard two-barrel carburetor and was rated at 145 horsepower at 4400 RPMs and 216 lb-ft of torque at 2200 RPMs.



Did the Mustang 2 come with a V8?


1975. "With oil crisis memories starting to fade," Ford needed a V8 in the Mustang II to return "performance to respectable levels." The engine bay was re-engineered to accept the 302 cu in (4.9 L) V8 option for the 1975 model year, with revised hood and header panel.



How much is a 1978 Mustang Cobra 2 worth?


Typically, you can expect to pay around $14,200 for a 1978 Ford Mustang II Cobra II in good condition with average spec. What is the highest selling price of a 1978 Ford Mustang II Cobra II? The highest selling price of a 1978 Ford Mustang II Cobra II at auction over the last three years was $17,587.



What is the gas mileage on a 1978 Mustang 2?


Based on data from 2 vehicles, 253 fuel-ups and 39,899 miles of driving, the 1978 Ford Mustang II gets a combined Avg MPG of 14.63 with a 0.37 MPG margin of error.



How much horsepower does a 1978 Ford Mustang II King Cobra have?


139 horsepower
Adding the King Cobra package made this the most expensive Mustang, beating out the Boss 429 of 1969 and 1970. 4,306 people opted for this package which included a 302-cu.in. two-barrel carburetor engine making 139 horsepower.



How much horsepower does a 1976 Mustang Cobra 2 have?


The car had “no power,” Morrow said, as he recalled the 136 horsepower for the factory two-barrel 302 V-8. His Cobra II did come from the factory with a four-speed manual transmission, but the rear axle gears were an open set of 3.08s, clearly not enough to launch the Cobra II to respectable quarter-mile ETs.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.