Posted: 1/23/2005 8:08:17 AM EDT
| 5.4l triton VS 5.8l 351w. What is the power and gas milage differences? I was comparing F250s and dont know the major differences. And I know arfcom community can anwser any question. |
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Those are two totally different engines. Nothing is the same. The 351 you refer to was actually 2 different engines. One was built in Winsor, Ontairo Canada and the the other was the 351 Cleveland, built in Cleveland, Ohio engine plant #2 ( I made thousands of there when I worked for Ford in Cleveland). They are an older technology engine. Not reallt eficient. To get them to make power, they used HUGE valves. And they were actuated by pushrods. In other words, one step above the flathead. The 5.4 Trident is a high tech motor that is really a 330 Cid or 5.4 liters in displacement. Ford used almost investment castings to build the Trident family of engines. They use only a 20 thousands pass on a rough casting to machine the thing! Very little tooling to produce the engine. It is also an OVERHEAD camshaft design, using a double row chain to drive the cams, just like on my BMW! The 351's all used carburators or a lousy fuel injection system. The Trident series uses a state of the art fuel injection system. It also has NO DISTRIBUTOR OR SPARK PLUG WIRES! It's all done by a crank fire computor controlled ignition system that has eight coils, one mounted right on top of the spark plug ( thet are platinum, lasting 100,000 miles). All of this stuff is right from the Costworth Formula One engines. They work , always work and work well. The ticket to getting power out of one of these engines is airflow. A freeflow exhaust is in order. As is a free flow intake system such as made by K&N. This replaces the stock air intake system up to the intake throtle control. Makes all the difference. I have this setup in my 1999 F250 Super Duty and can get 17 MPG on the freeway with 4.10 gears and BFG Mud tires!! It will also tow ny 7800lb Artic Fox trailer up the mountain from Phoenix to Flagstaff with out too much trouble. Of course I only get 7 MPG doing that but I am climbung over 8K ft in altitude. The '05 5.4 makes LOTS more power as it is now a 3 valve per cylinder and now has fly by wire throtle control for more precise control. If you're worried about fuel mileage, buy a Honda, You want a truck to work for you, get a truck. Get a Ford. |
I also have a 99 F250 Super Duty, but I have about 110,000 miles on it. Where can i get some of those plugs? What about a chip or tuner any experiance with that? |