4.3L Hei conversion

[wileecoyote]

I have an 87 4.3L OMC Cobra and I was wondering if anyone had tried the HEI conversion? It seems really easy, if you can find a V-6 Hei unit. The only problem I can think of would be the lack of vacuum ports on a marine carb. If anyone has tried it please give me some feedback.<br />Thanks, Mark

 

[Lark40]

Re: 4.3L Hei conversion

I also have a 1987 4.3 OMC on one of my boats.<br /><br />Recently have read several postings on another site that warns against electronic ignition conversions on OMC's due to the elecrtonic assist shift module. <br /><br />Apparently, there has been a record of fires breaking out in these cases. This history has convinced me to forget the conversion.

 

[wileecoyote]

Re: 4.3L Hei conversion

I just found out on another site that OMC/Bombadier makes a direct replacement unit for the 87 4.3L. It is a marine unit and is a drop in replacement. Part# is 988165. You can get it from your OMC dealer for around $200.

 

[Lark40]

Re: 4.3L Hei conversion

That's the same site whose moderator warned about the Pertronix units causing fires. Guess the issue only applies to Pertronix conversions.