valvetrain?
car fired right off, sounded great, starts right up. next day start it and let it run for a while and get to operating temp and it starts making noise (i'll try to get a video soon). now it makes the noise constantly. mechanic says it's not a low end knock that he scoped it and he thinks it's valvetrain. he swapped the stock rockers with a stock set off my old motor, still noise. car hasn't seen rpms over 2k or been driven because this noise is worrying me. cars still holding good oil pressure.
i'm being told we should pull the heads and get them to a machine shop and replace the lifters. what would you guys do in this scenario?
oh the cars a 2000 SS. motor came out of a 2001 ws6, stock shortblock.

