Does WORKS recommend upgraded valve springs, retainers and head studs?
Yes. We mainly recommend them for added reliability, safety and security. They are typically installed when adding the 269 Power Cams or any cam with higher liftthe original components are already exposed with the camshafts removed. The springs and retainers allow the valvetrain to rev higher (in part due to their lighter weight and higher spring pressure), they also increase clearance at the valve stem seal (which is important when going with a higher lift cam). The factory head studs are often swapped for those that are less likely to stretch. This allows the head gasket to remain firmly held in place between the head and the engine block, even under increased boost pressure.
