the ls1 has gained just as much popularity as the gen 1 small blocks. even classic car tuners are utilizing the early ls1 blocks because as the newer stuff comes out our motors become easily affordable. theyre also very easy to work on and get great gas mileage even when modded.
no the ls1 is here to stay. gen 1's and 2's are working their way out the door. we just need the old stubborn stuck in their ways guys to die in the next 10 years and itll be at the bottom of the river with the lt1. the only difference is the lt1 is doing what it was meant to do