Haven't tried this myself since I'm not rooted but thought I would pass this along.
Google's Dialer With Built-in Search Is Exclusive To Nexus And GPE Devices, But You Can Install It Manually On Other KitKat ROMs [Download]
Google's Dialer With Built-in Search Is Exclusive To Nexus And GPE Devices, But You Can Install It Manually On Other KitKat ROMs [Download]