I have a stock harley 2002, i wanted to know if its possible to change the stock upper pulley to a stock lightning upper puley?

 

Yes just get the right tool to remove and install the pulley. The stock lightning pulley should add 2#'s I believe.

 

do u know were i can find one or something aftermarket similar to that?

 

If you're looking for the tool, try autozone or pep boys. Ebay has them too but at the auto parts store, you should just have to leave a deposit that you will get back.
If you're looking for another pulley, try ebay or some of the lightning perfromance shops online.

 

Yes Boys and girls, BENT PULLEY. Lets use "bent pulley" in a sentence, shall we??

OK,
If use do not use a pulley puller that supports the back of the pulley around most of its surface, you will have a bent pulley once it is off!!!

Very good boys and girls, now I hope you learned something today??

Lowflyingbird