MSD Blaster 3 Ignition Coil # MSD8223Ignition Coil, Blaster 3, Canister, Round, Oil Filled, Red, 45,000 V, EachCoil Style:Remote mountPrimary Resistance:0.700 ohmsCoil Internal Construction:Oil-filledCoil Wire Attachment:Male/HEICoil Color:RedMaximum Voltage:45,000 VTurns Ratio:100:1Secondary Resistance:4.70K ohmsInductance:8.00 mHPeak Current:140 mASpark Duration:350 uSMounting Bracket Included:NoCoil Wire Included:NoBallast Resistor Included:NoCoil Shape:RoundDiameter (in):2.125 in.Height (in):7.500 in.Quantity:Sold individually.Notes:Due to its "oil filled" design, this coil should only be mounted in a vertical (upright) position.MSD Blaster 3 coils put out 45,000 V, which are 15,000 more than stock. They also have an oil-filled metal canister and will fit stock mounting brackets. The coils have a unique Power Tower that is twice as high as a standard tower. The extra distance prevents secondary arcing between the primary terminals and the coil center. The HEI-style boot and terminal keep the coil wire secure.