I bought these new for my 04 silverado and when I was going to use them, I noticed that my truck needed the 03 style bolts since I have an early 04 . These are for 04 and up. I'm looking for $115 shipped in the continental U.S. Let me know if there are any questions.

 

Will they work on 05 4.8l?

 

Yup they will

 

Whats the difference and how do u tell which ones u need

 

Because I'm a self proclaimed genius...on LS series engines.

1997-03 has 3 head bolt lengths
2005-2013 2 head bolt lengths
2004- pull your heads to find out! Seriously

 

Damn just bought some

 

Lol well i guess ill pull the heads tomorrow seriously bc theres a diff motor in there and cant remember year sooo if there what ill need id like to purchase friday

 

I'll take it ,pm me paypal info.

 

Are these still available if so would like to 2 know if they will work for me lol... i got 2 diff size 15mm head bolts and the little 10mms

 

Sold!!!