How much HP is a stock 454?
The Chevrolet 454 engine, a part of the big block family, has been a favorite among car enthusiasts and performance seekers since its introduction. Known for its impressive horsepower and torque, the stock 454 engine has made a significant impact in the automotive world. In this article, we will explore the horsepower ratings of the stock 454 engine and what makes it a popular choice for both classic and modern vehicles.
Horsepower Ratings of the Stock 454
The stock Chevrolet 454 engine, particularly the versions produced in the late 1960s and 1970s, typically boasts a horsepower rating of around 360 to 450 horsepower. The exact horsepower can vary based on the specific model and year of production:
- 454 LS5 (1970): This version produced approximately 360 horsepower.
- 454 LS6 (1970): The high-performance variant, known for its aggressive tuning, generated about 450 horsepower.
- 454 SS (1987-1990): In the later years, the 454 SS pickup truck version was rated at around 230 horsepower, reflecting changes in emissions regulations and engine tuning.
Why the 454 Engine is Popular
The Chevrolet 454 engine remains a popular choice for several reasons:
- Powerful Performance: With its high horsepower and torque, the 454 engine delivers exceptional performance, making it ideal for muscle cars and trucks.
- Aftermarket Support: There is a vast aftermarket community that supports the 454 engine, offering performance upgrades and modifications.
- Classic Appeal: Many car enthusiasts appreciate the classic big block design and the nostalgia associated with the 454 engine.
Conclusion
In summary, the stock Chevrolet 454 engine is a powerhouse that has left a lasting legacy in the automotive industry. With horsepower ratings ranging from 360 to 450, depending on the model, it continues to be a sought-after engine for performance enthusiasts. Whether you're restoring a classic car or looking to enhance your truck's capabilities, the 454 engine offers a blend of power and heritage that is hard to beat.
Frequently Asked Questions
How much HP does a 454 have stock?
So the average stock 454 is 250hp. They changed the rating system from gross horsepower to net horsepower in 1972 net is more realistic but not always dead on.
How much horsepower does a 454 small block have?
454 Small-Block
| Motown 454 Power | ||
|---|---|---|
| LB-FT | HP | |
| 4,100 | 564.8 | 441.0 |
| 4,200 | 574.0 | 459.0 |
| 4,300 | 579.4 | 474.3 |
How much horsepower is out of a 454?
In general, a properly tuned production automotive engine produces 1.0-1.5 hp per cubic inch. Where a particular engine falls depends on many factors, so we'll use 1.3 hp per cubic inch as a middle figure. That means a 454 can support almost 600 hp (454 x 1.3 = 590.2). Indeed, many do.
Does a cam give you more HP?
A roller cam does not add any horsepower at all it just makes the engine more reliable and allows you to use a stronger valve spring to keep the valve train in track of its movements better. The stronger spring means that the push rod and the lifter will follow the profile of a cam at high RPM.
How much horsepower does a supercharged 454 have?
SC HELLION 454
This CBM engine is Supercharged, it puts out 900+ hp @ 6800 RPM's and 875 ft-lbs of torque using 10lbs of boost. It has a compression ratio of 9.1.
Is a 454 big-block a good engine?
Yes, the 454 is the perfect block for performance enthusiasts or anyone wanting to enhance the reliability of their stock setup. Some of the most impactful chevy 454 engine upgrades worth considering include: Cams: Upgrading the camshaft in a Chevy 454 can significantly improve engine performance.
How much horsepower will a 454 have with twin turbos?
1000 hp on 91 Octane Pump Gas.
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 to get 500 horsepower out of 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. Credit the flow rate of the excellent Pro Comp aluminum cylinder heads and extra work performed by Dr. Js for some of the power.
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.
