I have no idea if there is room as I has always had the proper tools. If you do not have at least the special curved wrenches you are going to have some real fun at number 5 cylinder. Baum Tools should sell both wrenches and also the retainer wrench. Well worth the money if you plan to keep on adjusting your valves yourself. At my shop we charge $90/hr and the book calls for 1.7 hrs to adj valves. Food for thought at least. Hope this guides you. The use of proper tools will save you time and money.