MerCruiser Electronic Ignition Products SIERRA TUNE UP KIT W/CAP MC HEI V6 #47-5274 $22.65 Conversion kit for GM 3.0L Engines #FLGSHP30LIGNKIT $354.10 Distributor Kit - 3.0L #481034 $289.00 Electronic Conversion Kit - 6 cyl #RL5294 $139.00