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How much horsepower does a 1982 454 have?

The 1982 Chevrolet 454 engine was a powerful V8 powerplant that delivered impressive performance for its time. This iconic engine was known for its robust design, large displacement, and ability to produce substantial horsepower and torque.


Horsepower Specifications


The 1982 Chevrolet 454 engine was rated at 230 horsepower. This was a significant amount of power for a production vehicle in the early 1980s, making the 454 a popular choice for those seeking high-performance capabilities.


Engine Displacement and Design


The 454 cubic inch (7.4 liter) V8 engine was a large-displacement powerplant that provided ample torque and power delivery. The engine featured a cast-iron block and heads, as well as a robust rotating assembly to handle the high-performance demands. This design allowed the 454 to produce its impressive horsepower and torque figures.


Applications and Usage


The 1982 Chevrolet 454 engine was primarily found in full-size trucks and SUVs, such as the Chevrolet C/K series and Suburban models. It was also available as an option in some Chevrolet passenger cars, providing a high-performance alternative to the standard V8 offerings.


Enduring Legacy


The 454 engine has become an iconic part of Chevrolet's performance heritage. Even decades later, the 454's large displacement and powerful output continue to be admired by enthusiasts and collectors alike. The 454's legacy as a potent and reliable V8 engine has cemented its place in automotive history.

What year is a 454 big-block?


Big-Block Chevy Identification Guide

Casting NumberEngineDescription
340220427T1968-1985, 4-bolt
3450144541970-1986
3462364541975-1976, 2-bolt
3590704541970-1990



What can a 454 be stroked to?


On a 454ci engine with a stock, 4.00-inch stroke, a 0.100-inch overbore delivers a 476-inch displacement, while a 0.125-inch overbore will give you a 481-inch Rat. A popular combination is the safer 0.060-inch overbore with a longer, 4.250-inch stroke to make a 496-inch combination.



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 HP does a 1984 454 have?


The stock power ratings on these engines are pathetic (240 hp/355 tq), ie: peanut-port, open chamber, small valve heads , low compression cast pistons (8.25-8.5:1), low lift/short duration hydraulic cam, cast iron intake, Q-jet carburetor, (4 bolt main / steel crank).



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 HP does a Cammed 454 make?


The 454 responded very well to the cam upgrade, as the peak numbers jumped from 376 hp and 482 lb-ft with the stock cam to 428 hp and 507 lb-ft of torque. An increase of 52 hp is always welcome, especially when it comes with a sizable jump in peak torque.



How much horsepower does a 1983 454 have?


The 454 EFI version was rated from 230 hp (172 kW) to 255 hp (190 kW) and from 385 lb⋅ft (522 N⋅m) to 405 lb⋅ft (549 N⋅m) of torque.



Is a 454 big block a good engine?


In its prime, the 454 was praised for its torque output, making it suitable for heavy-duty applications like towing and hauling. However, it also had a reputation for being thirsty on fuel, especially in comparison to smaller, more modern engines.



How much horsepower does a 454 big-block have stock?


The 454 EFI version was rated from 230 hp (172 kW) to 255 hp (190 kW) and from 385 lb⋅ft (522 N⋅m) to 405 lb⋅ft (549 N⋅m) of torque. The 1991–1993 454SS made 255 horsepower at 4000 rpm and 405 lb-ft of torque at 2400 rpm thanks to dual 2.5" catalytic converters.



How much HP can you get from a 454?


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.