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How much horsepower does a 1973 454 truck have?


The 1973 Chevrolet 454 engine is a legendary big-block V8 that has been a favorite among truck enthusiasts for decades. Known for its power and durability, this engine was commonly used in heavy-duty trucks and performance vehicles of its time. In this article, we’ll explore the horsepower output of the 1973 454 truck engine and what made it such a powerhouse in its era.


Understanding the 454 Engine


The 454 engine, part of Chevrolet's big-block V8 family, was introduced in 1970 and quickly became synonymous with high performance. By 1973, the engine was primarily used in trucks and some performance cars, offering a balance of power and reliability. It was designed to handle heavy loads and deliver impressive torque, making it ideal for towing and hauling.


Horsepower Output of the 1973 454 Truck


In 1973, the 454 engine used in trucks typically produced around 240 to 275 horsepower, depending on the specific configuration and application. The exact output varied based on factors such as the carburetor, compression ratio, and whether the engine was equipped with emissions control systems, which were becoming more common during this period due to regulatory changes.


Why the 454 Stood Out


The 454 engine was not just about horsepower; it was also renowned for its torque. In truck applications, the engine could produce torque figures exceeding 350 lb-ft, which was crucial for heavy-duty tasks. Here are some reasons why the 454 engine was so popular:



  • High Displacement: With a displacement of 454 cubic inches (7.4 liters), this engine had the capacity to move a significant amount of air and fuel, resulting in impressive power output.

  • Durability: Built with a robust iron block and heads, the 454 was designed to withstand the stresses of heavy-duty use.

  • Versatility: The engine was used in a variety of applications, from trucks to muscle cars, showcasing its adaptability.


Conclusion


The 1973 454 truck engine remains a classic example of American engineering, delivering a combination of power, torque, and reliability that made it a favorite among truck owners. While its horsepower output of 240 to 275 may seem modest by today’s standards, it was more than enough to handle the demands of the era. Whether you’re restoring a vintage truck or simply appreciating automotive history, the 454 engine is a testament to Chevrolet’s commitment to performance and durability.


Frequently Asked Questions

How much HP does a 1970 454 have?


Chevrolet offered two versions of the car that contained a 454 cubic inch V8 engine—the LS5 that generated 360 horsepower, and the LS6 that hit 450 horsepower.



How much horsepower does a 1974 454 have?


270 hp @ 4400 RPM



What year 454 has the most HP?


The 1970 versions of the Chevrolet 454 were the most powerful, with the LS5 putting out around 360 horsepower and the LS6 delivering about 450 horses.



How much horsepower does a 454 Silverado have?


230 horsepower
The venerable 454 SS nameplate denoted a 454-cubic-inch 7.4-liter V8 making 230 horsepower and 385 pound-feet of torque.



How much horsepower does a 1973 454 have?


The 73-74 454's were probably somewhere in the 355-370 "gross" HP range. Technically, if the 1971 and 1972 LS5 were identical, and the 1971 was rated at 365 GHP and the 1972 was rated at 270 NHP and the 1973-74 LS4 was rated at 275 NHP then it follows that the LS4 GHP had to be above 370.



How much is a 1973 C10 worth?


The value of a 1973 Chevrolet C10 1/2 Ton can vary greatly depending on its condition, mileage, options, and history. Typically, you can expect to pay around $13,563 for a 1973 Chevrolet C10 1/2 Ton in good condition with average spec.



How much horsepower does a 1973 Chevy truck have?


Engine options were plentiful. Buyers could choose from a 250-cubic-inch in-line six (100 hp), a 292-cube six (120 hp), a 307 V-8(115 or 130 hp), a 350 V-8(155 hp), and the all-new, range-topping 454 big-block V-8 (240 hp).



Are a 7.4 and a 454 the same engine?


Chevy's 7.4L (454 ci) big-block engine was offered in many production vehicles from 1970 to 2001 and is still available today as a crate variant. Much of the engine's popularity stems from its impressive horsepower and torque output and solid reliability.



What is the quarter mile time for a 1973 Corvette 454?


The low-compression, hydraulic-lifter 454 is still the hot set-up. Whether you choose a 4-speed transmission or an automatic, the quarter-mile times come out to about 14.7 seconds at 97 mph in either case.



How much HP can a built 454 make?


The budget 454 not only managed to exceed 500 hp, but did so in spectacular fashion with peak numbers of 565 hp at 5,900 rpm and 532 lb-ft of torque at 5,400 rpm.


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.