Hey guys, so i'm swapping motors for a 408 with LS3 heads and need help with a headers selection. This is a 2003 Silverado and I need long tubes. I ordered Kooks 6753 but found out they don't fit. So if anyone is running this setup, what headers would you recommend. I will be running 1 7/8" primaries. Thanks

 

Check out Texas speed to the left. They have a great set for $500 or so. Look in the F-body, they fit the trucks good.

 

im running the same setup but its in a 01 i run the kooks 1 7/8s stepped to 2" cant help ya on the part number BUT there from an f-body i actually got them from flaco a good while back, sorry not much help but with a healthy 408 id look for stepped headers