I was going to say I bet you have a trashed cam too. You're going to need that and your engine gone through to make sure that there isn't any metal piece in it somewhere. If a piece jams in the oil pump bypass it will trash your motor again.
I wouldn't have gone with any of those aluminum rockers. They aren't all that and aluminum is a lousy material for the application. Unless you have Trick Flow heads sticking with the stock rockers with a trunnion upgrade is a better option IMHO.
As far as rockers HP is irrelevant as it's spring pressure, cam lobe profile and RPM that tax a lifter. For "normal" RPM up to near 7k Lunati or Morel lifters are both good options and if you want to spend the money they also make "race" lifters that can handle even higher RPM.
2004 Blk/Rd M6
6.3 litre LS1
Built and tuned by svede
Last edited by svede1212; 11-11-2012 at 04:11 PM.