How much does it cost to rebuild a 454 marine engine?

How much does it cost to rebuild a marine engine?

Rebuilding your engine will cost around $2,500. That difference of $1,000 to $2,000 will buy a lot of gas, so consider carefully. The same-size engine in a newer four-stroke or DFI two-stroke model will add at least a $1,500 premium, so those 90 to 115 horsepower models could now run upward of $6,000.

How many hours will a 454 marine engine last?

While at the annapolis boat show this year, I spoke with the crusader dealer about life expectancy of gas motors, in particular the gm based 454. his opinion was , that with proper care and depending on how they are used , 3000 hrs or more is realistic.

Is it cheaper to rebuild an engine or replace it?

A scheduled overhaul is almost always less expensive than a new engine. Rebuilding to repair is usually cheaper than buying a new engine, too. You may save up to half of the cost of a new engine by rebuilding. However, sometimes rebuilding is not a good option.

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How many horsepower is a Mercruiser 454?

Mercruiser Big Block 7.4L V8 Marine Engine Product Specifications

Models 7.4L MPI 454 Mag MPI
Propshaft Horsepower (SAV1 Rating) 3101 (2752) 3851
Propshaft Kilowatts (SAV1 Rating) 2311 (2052) 2871
Displacement 454 cid (7.4 l)
Maximum rpm @ WOT3 4200-4600 rpm 4600-5000 rpm

How long will a rebuilt engine last?

You might not have to worry about the motor in your car for a long time if you do it right. If an engine rebuild is done properly, it can last over 100000 miles! And even just maintaining the vehicle and doing some of the work on its own will help keep that mileage up as well.

When should a marine engine be rebuilt?

After 5,000 hours, yacht owners can choose between rebuilding their engine fully or partially. Most marine engines don’t get fully worn out. What’s more common is for one or a few parts to start malfunctioning.

How do you convert boat hours to miles?

Multiply the amount of hours on your engine by 60. Use the number you come up with to estimate how many miles are on your engine. For example, 1,235 hours on an engine equates to approximately 74,100 miles.

What is considered high hours on a boat?

There are a few things to consider when looking at boat hours. Unless you are looking at a really high hour boat (2,000+ hours) there are typically very few drawbacks to the number of hours a boat has. In fact, a boat with normal hours (50-75 per year) will often time run better than a boat with low hours.

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Are Rebuilt engines as good as new?

In frequent circumstances, rebuilt engines can be superior to new car engines. This is because better parts can be utilized for the engine rebuild. Design changes in parts can even correct problems that existed with the original engine. As technology advances, parts are created and manufactured better than before.

Does a rebuilt engine have 0 miles?

It’s against federal law to change an odometer. So if you rebuild the engine then the engine has 0 miles.

How much does a typical engine rebuild cost?

A typical engine rebuild is between $2,500 and $4,000 in parts and labor costs. This type of engine repair might include simply replacing bearings and seals, and obviously taking the engine out and re-installing it.

What is the 7.4 MPI?

The MerCruiser 7.4L MPI is a gasoline powered, fuel injected, 8-cylinder, 4-cycle marine engine. It delivers 310 horsepower (HP) to the propeller shaft at a maximum of 4,200 to 4,600 RPM at WOT (revolutions per minute at wide open throttle). It is a large engine with 454 cubic inches (7.4 liters) of displacement.