Pertronix 60104 Flame Thrower HV 60,000 Volt E-Core Coil .045 Ohm. Pertronix HV (High Voltage) E-Core Design Yields An Incredible 60,000 Volts And Operates With No Degradation Throughout Temperature Ranges That Surpass Military Specifications. The Special Heat Sink Design Made From Aircraft 6063 T5 Aluminum Efficiently Transfers Heat Optimizing Energy Output For Street/Strip And Off Road Applications. Flame-Thrower HV .045 Ohm Coils Are Also Compatible With Most Capacitive Discharge Boxes Including Pertronix Second Strike. Specs: HV Epoxy Filled E-Core Design Black Finish Turn Ratio 90:1 Primary Resistance 0.45 Ohms Secondary Resistance 7.3k Ohms Primary Inductance 3.8mH Maximum Voltage 60,000 Length 4.6" X Width 4.65" X Height 3.15" Features: Highly Efficient E-Core Design Vacuum Potted Coil Body For Longer Life And Increased Reliability Precision Machined Male High Tension Terminal And Brass Primary Terminals Legal In All 50 States And Canada. (C.A.R.B. E.O. #D-57-10) Warranty: 90 Days