Yes it will fit but you would be better off buying a triple channel kit for X58
http://www.newegg.com/Product/Productcompare.aspx?Submit=ENE&N=100007611%20600006050%20600052011%20600006127&IsNodeId=1&page=2&bop=And&CompareItemList=147%7C20%2D226%2D192%5E20%2D226%2D192%2DTS%2C20%2D226%2D218%5E20%2D226%2D218%2DTS%2C20%2D226%2D396%5E20%2D226%2D396%2D02%23&percm=20%2D226%2D396%3A%24%24%24%24%24%24%24