1997 to 2004 GM LS1/LS6 & 2005 to Present GM LS2/LS4
- LS7 aluminum roller rocker system. This rocker system installs like the stock rockers by bolting them to the aluminum cradle stand. This means you don’t have to remove your heads for machine work. It’s a fully adjustable rocker that will require shorter length pushrods and a valve cover spacer for proper installation.