Hello everyone, I have a 1995 / 1996 Mariah speed boat that came with a 4.3L Vortec engine. About 2 years ago we did not properly winterize therefore the block cracked - every year before this we winterized right after pulling it out of the water therefore the thermostat was open therefore allowing anti freeze. We screwed up by not ensuring the thermostat opened up. Regardless, we decided to put a 350 ci motor in the boat. There are several changes required as well as not putting so much HP to my outdrive - I am aware of that so please do not bring this issue up. My question to the forum members is - I need to purchase a marine distributor for the engine but I noticed that my stock 4.3L distributor not only had a 12V and Ground but also a multi pin connector. Can someone tell me what this multi pin connector is? I can get an aftermarket marine distributor but I do not think any will have that multi pin connector. I also am familiar with distributors simply having a 2 wire connection. See pictures of my stock 4.3L distributor below with the multi pin connector shown - distbutor was a Mercruiser Thunderbolt IV.
