Made paper template for oil cooler shutter. Prepped baffles and applied Permatex Ultra Black RTV to areas of aft baffles. Attached left aft baffle and left side baffle assemblies to engine. Mounted oil cooler and blocking plate to left aft baffle. Bolted cross brace to left side baffle and left aft baffle. Attached right aft/side baffle assemblies to engine. Routed ignition wires through baffles and assembled ignition wire looms to baffles. Torqued and sealed bolts and nuts.