M12720BK DUI HEI Chev SB BB marine distributor Coil in black cap

Davis Unified Ignition HEI marine distributor with internal performance coil. FREE S&H too!
  • INFO
  • Gap your spark plugs at .055 and go! No extra parts to buy except the plug-in wire for your power and the tach if you don't already have one as this is a complete engine ignition system with a powerful coil in the cap. Ships from our TN warehouse or you can pick it up in Memphis on vacation. 

    Fits Mercruiser, OMC, Volvo, Pleasurecraft, Yamaha, Crusader, some ChrisCraft, and most others using 305 thru 454 small and big block Chev V8 engines as their base. FREE SHIPPING to all 50 states too.

    NOTE: We also will have black 10.5mm spark plug wire sets (normal is 7mm) Oct.2020 permitting these wide plug gaps for possible increased power and fuel economy. They look awesome too!

    NOTE: Please allow two weeks before shipping as these are all built to order.