The Ford Racing balance shaft block-off plug for 2.0L/2.3L EcoBoost Mustang applications supplies a plug and bolt to eliminate the balance shaft opening. Removing the balance shaft increases oil volume to the upper end and reduces rotating mass by approximately 20 lb, improving engine responsiveness where removal is appropriate. The part is made in the USA and intended for applicable EcoBoost engines.
Ford Racing Mustang 2.0L/2.3L EcoBoost Balance Shaft Block-Off Plug