i have a 98 f-150 with a 4.6 and ive been pulling a horse trailer alot over the past couple weeks and the truck really struggles, so i am looking for the best way to get more power/better towing capability. ive considered changing from 3:55 to 4:11 gears, installing a power programmer, or just bolt ons such as an intake, exhaust, TB Spacer, etc... If any one has tried any of these options i would appreciate some input on which one will give me more power for the amount of money i would be spending. Thanks!!

 

A PI head swap from a '01 would help alot. The cost would be the used price of the heads and the intake. If you get used heads I would recommend having the seals replaced.

 

thanks for replying to my thread, what does Pl stand for and what is the difference? also what do you think the price range of these parts would be? thanks! cody.

 

Performance Improved. In '01 Ford upgraded the heads on the 4.6 and I think that added 35hp. All the 5.4 are PI.

 

2wd or 4wd? If 2wd a gear swap will make a HUGE differnece and wont be too expensive. With a 98 a programmer will not add as much as it does on a newer model. Intake and exhaust can help, but they can also reduce your low end at times. I would do the gears first and see if that is anout of a change to make you satisfied

 

Change the gears. They multiply the available torque to the wheels. You should be looking at $1200.00 to $1500.00 for the install on a 4X4.

JMC

 

I changed the gears in my 4.6 from 3.31 to 4.10. that'll help you tow that trailer around a lot better. probally your best option as far as bang for your buck.

 

Are the heads a bolt on application? Do they work with edge programmer?

 

gears it is. thanks for the help everyone