How to increase fuel economy in a 454? [Solved] (2022)

How to increase fuel economy in a 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.
... read more ›

(Video) Get better mileage on YOUR 87 Dolphin RV 454 with a simple mod!

How do you save gas on a 454?

- Like you said, start with the basics, new fuel filter, new plugs and wires, new cap and rotor. Also, throw in some synthetic oil, this helps a little bit, also better for your engine while towing. - Definitely add a high flow intake, also a throttle body spacer. Put a high flow muffler on it as well.... see details ›

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How much fuel does a 454 burn?

Don't know enough about that particular boat to be precise, but twin 454's typically burn 24-26 gph at 3,000 rpm, which I would suspect will be about 18-19 kts on that boat (assuming its economy is similar to a 33' Tiara with the same engines), and 32-34 gph at 3,400 rpm, which would likely be in the 22-23 kts range.... see more ›

(Swedes And A Boat)

How many MPG does a carbureted 454 get?

He's not a motorhome dealer but he's driven and used perhaps a few more motorhomes than average. He was telling me that in his experience only that the fuel injected 454s (especially the Vortec 454) usually got about 12 MPG while the carbureted 454s got around 6 MPG on the highway.... continue reading ›

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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.... see details ›

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(Uncle Tony's Garage)

How many miles will a 454 last?

454 will run 200k with the right oil.... see more ›

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How far can you bore out a 454?

That's because the classic, Mark IV big-block is limited to about 0.100-0.125-inch maximum overbores. 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.... view details ›

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Are 454 good engines?

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.... see details ›

(Video) The Real Reason I Hate My 454 Big Block
(Rubberducky Diesel)

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.... view details ›

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How much does a Chevrolet 454 engine weigh?

Chevrolet big-block engine
Power output250–1,004 hp (186–749 kW)
Torque output385–876 lb⋅ft (522–1,188 N⋅m)
Dry weight517–761 lb (235–345 kg)
18 more rows

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How much horsepower does a 454 have?

How Much Horsepower Does A 454 Have? Surprisingly, the 454 big-block V8 engine laid down 330 horsepower and 475 pound-feet of torque. Its truck-based 454 engine was tuned for torque with a surprise of reaching nearly 500 lb. feet without being loud.... continue reading ›

(Richard Holdener)

How many miles per gallon does a 350 engine get?

A std short bed carbureted ( it matters) 350 half ton with gearing such that you Turn about 2200 or less rpm in a late 705 to early eights stock truck will be about 16 mpg on the highway at 65 mph.... continue reading ›

How to increase fuel economy in a 454? [Solved] (2022)

How many miles per gallon does a 25 foot RV get?

The average mileage that this type of motorhome gets is around 18 to 25 miles per gallon.
Class B motorhome gas mileage examples.
Class B MotorhomeMileage
Winnebago Rialta19 mpg
Roadtrek Sprinter RS Adventurous20 mpg
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What year did Chevy stop making the 454?

The 454 SS was built until 1993. After a year's hiatus in 1995, the 454 big block Chevy would return in its third, and final, iteration the following year.... see more ›

What is Chevy's most powerful engine?

As the power behind the 2019 Corvette ZR1, the new supercharged 6.2L LT5 represents the pinnacle of Chevrolet's performance: It's the most powerful engine ever offered in a Chevy production vehicle.... see more ›

How much horsepower can a stock 454 handle?

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. Using the same multiplier, a 496 can support 645 hp.... view details ›

Is the Chevy 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.... view details ›

How much oil pressure should a 454 have?

Cold and hot. Idle and at speed. Oil Pressure ranges between 65-70 PSI.... read more ›

What can a 454 be stroked to?

Best of all, they're ripe for the stroker treatment. 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. Now bore those cylinders out a touch, to say . 060-inch over and you end up with the venerable 496.... see more ›

What is a 454 bored .060 over?

Registered. if i'm figuring correctly, a 454 stroked to 4.25 and the cylinders punched out . 060 will net you a 496. if you keep the stock stroke of 4" and bore out . 060 you have a 468.... read more ›

How much power can a 2 bolt main 454 handle?

Re: How much power with a two bolt main 454

a 2 bolt main will support 450 hp for short periods of WOT if it has a steel crank. I wouldn't recommend trying 450 with a cast crank though. The 330 should be a 4 bolt main block.... see details ›

What year is a Gen 5 454?

Gen V(5) Big Block Chevrolet Engine Differences

Produced from 1991-1995, these Only came in a 454 cubic-inch configuration. They had a one-piece rear main seal, oiling passages closer to the cam and every block received four-bolt mains. Gen 5 BBC's saw cast aluminum valve covers and front covers for better sealing.... see details ›

When did the 454 get fuel injection?

The 454 received upgrades along with SQI (sequential fuel injection) in 1996, rebranded as the 7400 Vortec. The Generation VII 8100 Vortec which debuted in 2001 is a close derivative of the original 454, with the same bore and a larger stroke.... see more ›

How much is a 454 big block?

Estimated Price $14,895

Big block Chevy 454 with 550 Hp performance aluminum head engine combination can be custom designed to tailor to your specific needs.... view details ›

How do you save gas on a v8?

7 Ways to Get Better Gas Mileage on a V8, Old Car, Classic ... - YouTube... see details ›

Is it better to idle in neutral or drive?

Keeping an automatic transmission in Drive puts an extra load on it, which drains fuel. In neutral, it's resting -- or at least as close to rest as an automatic ever gets. This shift is even more important when the air conditioner is running, so the engine doesn't have to strain so hard while idling.... view details ›

Does idling in neutral save gas?

Most fuel-injected cars turn the fuel delivery completely off when you lift your foot from the accelerator. They still burn fuel when idling in Neutral, so do the math. The amount of fuel burned at idle over, say, a couple of miles of coasting downhill is small, but it's still more than zero.... view details ›

Is it better to idle or turn car off?

Unless you drive a vintage, carburetor-equipped vehicle, you'll save fuel and reduce carbon dioxide emissions by turning it off. Some drivers think that idling uses less fuel than restarting, but our research has found that drivers save fuel and reduce emissions by shutting down for stops as brief as 10 seconds.... continue reading ›

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