i have a '98 f150 4x4 with 35's. the motor is original & stock. it has the 4.6 2v & 3.55's. this combo is WEAK! i pull a work trailer & 19' boat. about 1/3 of my travel is 80 mph highway. my engine has 180k on it and plan to replace it with something & keep the truck.

im thinking air flow mods on a new 4.6 2v with gears or , a mild super charger that dosent require premium which i cant find, or maybe a 5.4 swap. what would you guys recomend.

 

Get a pi head 2v4.6 mines got plenty of power I'm on stock fires but still if u gear it(4.56) u should have plenty of torque.

 

Tire*

 

You would probably be very happy with a gear swap alone. Then if you require more power, start moving onto performance products.

 

x2!
I wish i had done this with my f150 from the start. The long tube headers and intake and tuner definatly made a big difference but it was nothing compared to the gears. Im running 35s with 4.56 and the 5.4 and its great now.

 

what kind of mileage do you get with the 4.56's? im currently getting 12.2 per gallon. thanks for the replies

 

gear change to 4.56's would be a good start. swap in a 99+ 5.4 if you are going to put in a new motor because they have PI heads.

superchargers are going to require that you run 93 octane. you CAN run them on 87 but you need a GREAT tune and i wouldnt risk it since you are towing.