How much horsepower does a Marine 454 have?

How much horsepower does a Marine 454 have?

Mercruiser Big Block 7.4L V8 Marine Engine Product Specifications

What is the horsepower of a 7.4 MerCruiser?

Performance Specs

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).

What company makes MerCruiser engines?

Brunswick Corporation
They primarily design manufacture and produce marine specific motors, the largest sector being outboard engines. It also produces the MerCruiser line of sterndrives and inboard motors.
…
Mercury Marine.

How much oil does a 454 MerCruiser hold?

I’ve owned a number of boats with 7.4/454 engines, and the owner’s manuals say 7 quarts which is also the case with Chevy trucks I’ve owned. The Chevy’s always came to the full mark on the stick after adding 7 quarts. Problem is, 5 quarts is what it takes to bring the oil level to full on a MerCruiser.

How much HP does a RV 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.

How much power can a 454 make?

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).

How much horsepower does a 454 Magnum have?

The 454 MPI came in 2 different Hp version’s being the 330Hp model which was known as the 7.4L MPI, and the 385 Hp 454 Magnum MPI Sterndrive Model and 380 Hp 7.4L Magnum MPI.

How much torque does a 454 Mercruiser have?

Mercruiser Big V8 Marine Engine Fastener Torque Spec’s

Which Mercury engines are made in China?

Re: chinese outboards
Mercury makes all the Verados, Optimaxs, and 2 strokes in USA. The rest of them are made in China by Tohatsu.

Are Volvo Penta and MerCruiser engines the same?

The foundation of the MerCruiser and Volvo Penta have remained the same over time, beginning with the skeleton of an auto engine and then making changes to repurpose it for the boating industry — what’s known as “marinizing.” While the automotive and boating industries do share some similar fundamental needs, relying …

How much oil does a 454 marine engine take?

Most stock 454’s hold 5 qts.

How do you change the oil on a 454 Mercruiser?

HOW TO: change the engine oil and filter in your Mercruiser 7.4 454

How much horsepower does a cam add to a 454?

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 much does a new 454 engine cost?

As crate engines go, GM Performance Parts’ 454 H.O. crate engine is not only a bargain at its street price of around $4,600, its forged crank, pistons, and rods also make it capable of handling nearly as much power as you’re capable of throwing at it.

What year is the best 454?

1970
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 496 big block have?

On 104-octane, the 496 pumped out 671 hp at 6,600 rpm and 586 lb-ft at 5,200. Impressive, yes! However, we were curious to see the results on pump gas.
585 Lb-Ft & 672 Hp For The Strip.

How many hours is a Marine 454?

You should be able to get 1500 plus out of those engines if maintained properly.

Are 454 engines reliable?

Both the 350 or 454 are great reliable engines and going with either one of them would be great for a classic American sports car.

Are there any American made outboard motors?

Elco electric outboard motors, Made in the USA, are available in a wide range of horsepower options, from 5HP to 50HP, with remote or tiller control and long or short shaft to fit boats of all shapes and sizes. Our electric boat motors look like traditional outboards because for us, they are.

Are Yamaha outboards made in China?

Yamaha outboard motors are manufactured at four production bases: the Fukuroi South Factory (Fukuroi City, Shizuoka Prefecture) and group company Yamaha Kumamoto Products Co., Ltd. (Yatsushiro City, Kumamoto Prefecture) in Japan, MBK Industrie in France and Yamaha Motor da Amazonia Ltda.

How many hours will a Volvo Penta engine last?

Any well cared for and serviced engine should run for years and years. This is about 380 hours a year. When that is compared to a lorry or van engine, they will do 8356 hours in 4 to 5 years.

Does GM make Volvo Penta engines?

Volvo Penta will soon bring to market a 200- and 240-hp V6 gasoline sterndrive built with the fifth generation of General Motors engines.

What oil should I use for a 454 big block?

What is the recommended oil viscosity or SAE rating for Chevy 454 big-block engines? If you can’t find the owner’s manual, General Motors highly recommends 10W-30 oil for the 454. You can choose either a synthetic blend of fully synthetic oil as long as the SAE rating is 10W-30.

What oil does a MerCruiser engine take?

MerCruiser Oil Specs
The manufacturer recommends that its own MerCruiser SAE 20W-40 Full Synthetic Engine Oil be used.

What oil should I use in my 454?

If you can’t find the owner’s manual, General Motors highly recommends 10W-30 oil for the 454. You can choose either a synthetic blend of fully synthetic oil as long as the SAE rating is 10W-30.