Jerry Houston
TYF Newbie
2003 Suburban 1500. Planning on changing Z code flex 5.3 with fresh 6.0 log block. Should I send my PCM to someone like Black Bear with all of my engine info while the swap is going on? Not sure if I should try to run it first. Also, anyone see any problems I might face such as O2 sensors, mounts or anything? Sorry if this is a tired subject, but I'm looking for current advice. Thanks in advance.
