Product details:

ICT Billet 551923: LS Coil Brackets 19005218 D585 Heat Sink (fits LSA LS9 Valve Covers ONLY) - How important are ignition coils to the performance of your vehicle Well, without them your spark plugs would never receive the high voltage needed to ignite the fuel. Securing them is also important and that's the function of ICT Billet ignition coil brackets. Made from aerospace-grade aluminum, these brackets offer mounting points for a variety of coil styles. The brackets are available in different configurations and finishes; hardware is also included. Choose the brackets designed for fitment on your make/model.