Quote:
Originally Posted by AJxtcman  This is the head bolt conversion
2004 bolts 
Comparision of the pre 2004 and the 2004 and up. 
Yeah do they ever feel nice going into the new GM TimeSerts. A++++ |
For all you Northstar haters. The 2004 head bolt TimeSert are the same as the LSx engines use!
So I converted a 2003 Northstar the LSx head bolt threads!!!