anyone have the part number for the asp crank pulley for an 04 6.0 truck motor. i have heard you cant use the one for corvettes and camaros, which are the only ones i can find. is that true?

 

i found the part number. its asp549900 if anyone else needs it.

 

edit.

 

Just installed these on my truck last week. Got mine at Summit. They did a price match for me for $199.85.

 

Did they make any difference?

 

I did the crank and alternator pulleys. To answer your question Yes I did notice a difference. It's not much but it all ads up. I did the alternator pulley so the charging voltage remained the same. I did notice that the coolant temp is up about 5-7 degrees. Also I can feel a slight difference in the power steering at idle. Overall I am happy.

 

I did back to back dynos when swapping mine. No difference.

I did notice the ASP crank pulley isn't as noisy as the stock due to the wind noise that the stock one makes.

 

That's disappointing.