Ford: Harley Davidson Ford verses Lightning, harley davidson f 150, stock pulley

Question
Was wondering if there is a major difference in the motors between a 2002 Harley Ford and a 2002 Ford Lightning?? Im looking for the difference in the internals of the motor(rods, pistons, crank, ext.?) I own a 2002 HD Ford and want to do some upgrades to it, and want to make sure the internals are going to handle it. Im mainly looking to up the boost a few pounds and want to know if I need to tear into the motor. Or if I can do some add ons that the lightnings come with...Hope you can help..Thanks

Answer
Hello Mr. Barton.  I have found there is only really one difference in the motors.  There is a larger pulley that slows the blowers rotation speed, reducing the boost. The result of this is 40 less HP than the Lightning.  You should be able to buy an underdrive pulley or if you just want the stock power of Lightning you could simply purchase the stock pulley and swap it out.  Do keep in mind that you want to stick near the psi boost of the Lightning.  A Lightning has a stock boost of 8.0 psi, but if the Harley Davidson F-150 has a supercharger psi boost gauge you should have no problem sticking with a safe number.  Now keep in mind that with this modification you probably won't reach the performance of a Lightning because of the weight of your F-150 compared to a Lightning, but you will have the same power.  If you would like to add some more this and that mods I can give you a few tips.  You might consider putting in a power chip, I do know that Diablo chips are widely used on modded Lightnings.  You might also consider Bassani exaust, or Borla.  These exausts may not have the sound of a Flowmaster but they will perform better.  Those are just a few quick and easy things you can do to enhance your truck's performance.  If you ever want to get into detail about some more challenging modifications just let me know.  I hope some of this is of help to you, and please rate me and let me know how I did, and also more importantly keep me informed n how your pulley task works.  Thanks for the question!

Austin Hendricks