Just for kicks, I put my VIN into the decoder at the fleet maintenance site. It states that the 5.4 has a stated 250 hp? Advertised to have 300. What gives?

 

5.4 3v= 300hp 365ft lbs torque

5.4 2v w/pi heads= 250hp 350ft lbs torque

5.4 2v w/o pi heads= like 175hp and some odd number of torque

 

may be a dumb question but what are PI heads? did they come certain years?

 

I thought all 06's were 3v heads.

 

i think pi stands for performance improved heads. they gave quite a big difference in power. 99+ 5.4's have them. and 01+ 4.6's have them.

 

they were. computer must have been wrong

 

300 flywheel hp = you're lucky to see 240 at the rear wheels

 

My dusty old cob-web laiden brain recalls ratings for the 5.4 in my 1997 was rated (advertised) at 235, my 1999 at 260. Just couldn't figure out the 250 rating when I punched in the vin on my 2006. (Thought maybe it had the special "wuss performance package," that wasn't shown on the sticker when I bought it. LOL Thanks for the replies!

 

thanks, so my 01 has a 250hp rating, i wonder if im even putting 200 to the ground.. probably not lol

 

New body style has 300hp while the older body style has 260. Newest body style is 320 with straight e85.

 

Your truck is 260 HP and your lucky if your getting 195 to the rear wheels.

Phil

 

Oops -

5.4 2v w/pi heads= 260/350

5.4 2v w/o pi heads = 235/335

 

yeah I was gonna say mine had 235 stock haha wow that was a long time ago

 

my bad someone told me the 2v 5.4 w/o pi heads didnt even get over 200hp? maybe he dynoed his own and it was a 4.6. i dont know. and yea i kinda pressed 5 instead of 6 for the pi heads. oh well thanks for catching the mistake

 

You do realize that the 2v 5.4 w/o pi heads 235hp was not rwhp? You're probably only dynoing 185-190.