How Much Horsepower Does A 1978 Chevy 454 Have?

The 454 engine produced about 230 horsepower and 360 foot-lbs. of torque.

How much horsepower does a 1979 454 have?

The 1979 Chevrolet 454 cubic-inch V8 produced 245 horsepower at 4,000 rpm , better than the 225 horsepower at 4,000 rpm for the 1979 Dodge V8 440-3 and the 212 horsepower at 4,000 rpm of the 1980 Ford V8 460.

How much horsepower does a 1977 Chevy 454 have?

Early Truck 454s

In 1977, General Motors offered special trailering packages for its Chevys and GMC trucks, including the 1-tons. These 454s with four-barrel carburetors developed 230 horsepower and 360 foot-pounds of torque .

How many horsepower does a stock 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.

How much horsepower does a 1976 Chevy 454 have?

Hello cesarn– The 1976 Suburban with the 454 engine produced 240 hp.at 3800 rpms. It also produced 370 foot pounds of torque at 2800 rpms.

What year is the best 454 engine?

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 1975 454 have?

a 454 with 450 horsepower .

Which is better a 454 or a 350?

In a light to medium weight car, a 350 will probably offer you the happiest experience, especially in a daily driver role. In a truck, the 454 will probably feel better to your foot. In an all out performance car, the 454 will probably be more likable as long as the car is a straight line car (drag racing etc).

How much HP does a 1972 454 big block have?

454 Big Block Performance Specs

By the time 1972 was reached, change of power calculations along with reduced power for emissions control resulted in a drop to max power rating of 270 horsepower with a peak torque of 468 lb-ft.

How can I get more horsepower out of my 454?

1. Improve the fuel and air intake system. ...
2. Replace the stock exhaust system with a high-flow system. ...
3. Replace the stock timing parts with ones tuned for racing. ...
4. Bolt on a supercharger.

How much does a 454 big block cost?

A 454 that’s needs a complete rebuild from a junk yard for a few hundred dollars or less. A turn key you can expect to pay for performance a street engine for a car or truck about $5,000 to factory high performance around $15,000 .

Is the Chevy 454 a good engine?

The 454 big block is a very good engine to go with if you are looking for something that can output a lot of power, and fit in a lot of classic cars and trucks. This is a classic engine from Chevrolet and stock it makes great power from the factory, if you upgrade it you can get even more out of it.

How big can you stroke 454?

Take a 454, add a 4.250-inch stroke crank along with some 6.385-inch rods and your displacement shoots up to 489 cubes.

What Gen is a 85 454?

Chevy 396, 402, 427 and 454, 1965-1985; 454 Gen IV (Generation 4 or IV ), 454/502 Gen V (Generation | Northern Auto Parts.

How much horsepower does a 1995 454 have?

Performance. The 454 produced 425 horsepower , had a compression ratio of 9.6 to 1 (an engine’s maximum volume compared to its minimum), a maximum rpm of 5,500 and an ignition timing of four degrees before top dead center.

How much power can a 454 block handle?

That means a 454 can support almost 600 hp (454 x 1.3 = 590.2). Indeed, many do. Using the same multiplier, a 496 can support 645 hp.

How can I tell what generation my 454 is?

1. Identify the year and model. ...
2. Look for decals on the engine. ...
3. Locate the engine ID number located at the front of the engine block on the passenger side. ...
4. Decode the ID number. ...
5. Verify the casting numbers from either the cylinder head, intake manifold or crankshaft.

How much horsepower does a 1974 454 big block have?

Corvette 454 LS4 Big Block

While Corvettes were available with small block V-8s in 1974, including a 195 horsepower model, the engine most often associated with the Corvette brand was the 454, also known as the LS4.

Can you put 454 heads on a 396?

For example, tossing a set of 454 open-chamber heads on a 396 could radically reduce the compression ratio because of the roughly 10cc larger chamber on a short-stroke engine. Production big-blocks all the way into the mid ’90s were always flat tappet camshaft engines.

How much horsepower does a 1970 Chevy 454 have?

The high-performance LS6 454 equipped with a four-barrel carb had an 11.25-to-1 compression ratio and wielded 450 horsepower and 500 foot-pounds of torque in the 1970 Chevelles and Camaros.

How much horsepower does a 1973 454 have?

Finally, in 1973, GM introduced the 454ci LS4 as an available engine option for the Corvette. Rated at 270 HP , the LS4 was a far cry from the L88 of less than a decade prior, yet impressive nonetheless, when compared to other manufacturer’s offerings of the era.

Is a big block faster than a small block?

Big block engines are larger in size and weigh more, but they produce more consistent power and torque to overcome the weight. Small block engines are smaller for better acceleration and handling, but more recently built models can be just as powerful as big block engines.

How many horses does a 454 have?

In staying with the standard bore/stroke combination of 4.25/4 inches, however, it is not uncommon to yield power outputs of greater than 650 horsepower from the 454 in race engine configurations.

What does 4 bolt main mean on an engine?

These are what the crank bearings sit in. Most engines have 5 caps. A 2 bolt cap is fastened to the block with 2 bolts, and a 4 bolt cap has 4 bolts ( 2 on each side ). ... When you increase the load on the crank, you inherently increase the load on the main caps.

What is a Mark IV 454?

In 1970, the Mark IV was treated to a 0.24-inch bore job, taking it out to 4.00. With the 4.25 stroke unchanged, the new engine displaced 454 ci. ... This is the engine that never was, at least in production form. It’s the LS7, and it was destined for the ’70 Corvette.

How far is a 454 bored?

They can safely be bored to 4.500 inches , which, even with the stock 454/502’s 4-inch-stroke crank, yields a displacement of 509 ci.

What motor is a 454?

The Chevrolet 454-cubic-inch, or 7.4-liter, V-8 engine was a brawny gas-guzzling powerplant that should have died an ignoble death after the 1973 fuel crisis. Yet it survived to become a workhorse and father of the 8.1-liter 8100 Vortec V-8. Its uniqueness was in its versatility.

What size motor is a 7.4 liter?

The 7.4L (454 cubic-inch) V8 was a big-block engine manufactured by the Chevrolet Division of General Motors starting in 1970. It was the second-largest Chevy production engine after the 8.2L, or 502 cubic-inch motor.

Is there a 454 small block?

The 454 is based on the World Products’ Motown iron block , and the biggest news about it, beyond the huge displacement alone, is the 4.250-inch bore. ... Combined with the 4.000-inch stroke, the World Products 454 small-block has the same bore and stroke combo as an original 454 Chevy big-block.

What is the standard bore size on a 454?

The standard rod length on a 454 is 6.135-inch, and its bore size is 4.250-inch .

How much power does a 468 big block have?

Our 454/468 Hydraulic Roller cam engine will produce 600 horse power at approx. 5800 rpm.

Which Chevy big block is the best?

• 396 L78. This is the original factory big block Mark IV engine from Chevrolet. ...
• 427 Tri-Power. The 427 big block was introduced as a production engine in 1966 for full-sized Chevrolets and Corvettes. ...
• 454 LS6.

What year is a Gen 5 454?

Here’s a pristine Gen V 454 from a 1990 Chevrolet 454SS pickup. Gen V, introduced in 1991, included a superior one-piece main rear seal, new oiling passages closer to the cam, and all blocks received four-bolt mains.

How much horsepower does a 366 big block have?

Performance. The 366 BBC has been noted for producing a large amount of power without having to reach a high rpm. It has a peak horsepower of 300 horsepower at 4,400 rpm and a peak torque of 360 foot-pounds at 4,000 rpm.

What year 454 do I have?

Determine the year of the engine, using the alphanumeric code from the bellhousing flange. The letter corresponds to the month (A for January, B for February, etc), the next two numbers represent the day of the month. The last digit will tell you the year the engine was made.