SET OF 8 AUTOLITE REVOLUTION HT SPARK PLUGS TO SUIT FORD FALCON BF BARRA 230 SOHC 5.4L V8Autolite revolution HT spark plugs have been exclusively designed for the enthusiasts with high performance applications in mind. These plugs are one of the brand's most technologically advanced spark plugs which offer space saving benefits of a 10mm plug with the durability of a 14mm plug, plus the fine wire design feature gives more focused ignition power and longer service life. Key Features: Better heat transfer than a standard J gap design.