Stocks springs with Summit K50052
Valve rotators.
They take the place of the exhaust retainers on late model engines. If you have them, you'll need to put on standard retainers and keepers, and probably replace the springs as well anyway- they're slightly shorter for the rotators.
Valve rotators.
They take the place of the exhaust retainers on late model engines. If you have them, you'll need to put on standard retainers and keepers, and probably replace the springs as well anyway- they're slightly shorter for the rotators.