my father scored a set of heads off a 2001 vette,was a "warranty" job.....will these be ls1 or ls6, i have not seen yet to ckeck my self....any use to me? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

 

LS1 unless they are off a Z06. Check the exhaust ports. If they are a D then they are LS6. If they are pretty much round then they are LS1.