Is the 454 a good engine?

How many miles will a 454 last?

454 will run 200k with the right oil.

How much horsepower does a 454 have?

The 1970 production models of the 454 put out the most horsepower with the LS5 claiming 360 horsepower and the LS6 putting out a mighty 450 horsepower.

What kind of gas mileage does a 454 get?

The 454 is a big-block carbureted engine found in most older model Chevrolet cars and trucks. The engine uses eight cylinders to provide high-end torque and speeds. The combination of larger bore and eight cylinders equates to very poor gas mileage. The engine runs an average of 10 to 15 mpg.

How much horsepower can a 454 engine 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.

Is the 7.4 a good engine?

The 1996-2000 L29 7.4L big blocks are great engines. Much more dependable and durable than the 6.5L diesel of that era. L29’s had multiport sequential fuel injection, all of the latest sealing technology to prevent oil leaks and the “Vortec” style heads flowed very well.

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How can I get better gas mileage in my 454?

How to Increase Gas Mileage on a Chevy 454 Eng

  1. Replace your current air filter with a high-flow dry or oiled air filter. …
  2. Remove your spark plugs using a spark plug socket wrench. …
  3. Adjust your idle speed to the lowest setting. …
  4. Tune up your vehicle. …
  5. Maintain the proper tire pressure in your vehicle.

What year is the best 454?

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.

Is a 454 A big block?

The Mark IV big block V8 engines produced by General Motors in the 1960s and ’70s are the stuff of legend among muscle car enthusiasts.

Is a big block better 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 can I get more horsepower out of my 454?

How Do I Get More Power out of a Chevy 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 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.

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How many liters is a 454 motor?

For many years the 454 (7.4-liter) V8 was the top choice from GM, while Ford had the mighty 460 (7.5-liter) V8.

How much is a 454 motor worth?

How Much Does A Chevy 454 Cost? It is quite easy to find cheap ones for $2500 to $3500 to go up to high performance, and depending on what you are looking for and how long you want them, the $50,000+ range is easily within your grasp. The average 454 needs a complete rebuild from a scrap yard to run properly again.

How much does it cost to rebuild a Chevy 454?

The price of a 454 rebuild from a junk yard typically ranges in the $200-300 range. When purchasing a turn key with a street engine for your car or truck, expect it to cost at most $5,000 for factory-high performance, which reaches about $15,000.

How much power does a 454 big block make?

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.