They feature an integrated spring oiling hole in the rocker body to cool the valve springs through increased oil flow, a COMP Cams® exclusive. Ultra-Gold™ GM LS Rockers utilize eight, single-piece billet stands to increase valve train rigidity and deliver improved rocker mounting. The full radius body reduces stress, increases strength, and fi ts under the stock valve covers without modification to the valve train, although removal of the internal oil baffles is required.