After my built engine let go last year, I threatened to part the car out and go back to the 2JZ...well I decided to stay with the LS platform and give it a little more time.
I scavenged what I could from my destroyed built motor (ARP studs, rockers, PAC 1519 springs, melling oil pump, and metal head gaskets).
I picked up a junkyard 6.0 from an 05 Yukon that had an engine fire. I pulled the heads off to have them cleaned and valves reseated. The bottom end looked clean, so I didn't touch it. I reused the metal head gaskets and sprayed them with copper spray, installed the 317 heads with the PAC springs and trunioned rockers and reused my head studs. I did install a Speed Inc TU1.5 cam, but left stock lifters and pushrods. After chasing gremlins all summer, I finally found a group of ground wires that I had overlooked and stumbled upon last week. So after connecting them, I went to the track last weekend to see how it ran...
It was a cold day, and traction just wasn't there, but I just wanted it to finally run a clean pass...
I made 4 passes, the best being 9.3 @ 152, the worst pass 9.9 @ 151 shown here at 8:20 in the video take there
https://www.youtube.com/watch?v=nuclWJ24odk
Overall, pretty happy with the ole junkyard engine. You can see a little bit of smoke from the left rear tire rubbing, and I threw the alternator belt on the last pass, so I suppose it is time for a billet tensioner. Track is closing for the winter, so I can make some adjustments over the winter and get back at it in the spring