Ignition electronic convertion 4.3 l/x

[bobuk]

High, i've tried a search on ignitions for this topic throughout the forums and didnt come up with anyhting. So can anybody tell me how easy it would be to convert from my current thunderbolt ignition to electronic. There seem to be a lot of advantages.<br />cheers Bob

 

[Bondo]

Re: Ignition electronic convertion 4.3 l/x

The Thunderbolt IV,.... IS an Electronic ignition,...............<br /><br />1 of the Best BTW...........

 

[Don S]

Re: Ignition electronic convertion 4.3 l/x

Bondo is right. Mercruiser never used a V6 engine with points ignition. They have always been electronic.<br />Do yourself a favor, get a Mercruiser service manual for your engine. Depending on the year, you could have either a Thunderbolt IV or V. They have different methods of setting timing.

 

[bobuk]

Re: Ignition electronic convertion 4.3 l/x

thanks guys

 

[donwhiteside]

Re: Ignition electronic convertion 4.3 l/x

My 1972 Mercruiser 325 has an OLD Thunderbolt ignition. I recently had to "patch" wires leading from the hall sensor to the switch box. Replacement costs for these two units are $$$. If either fails, I wonder if I can substitute a generic electronic ignition/distributor. Any ideas?<br /><br />Thanks,<br /><br />Don

 

[Bondo]

Re: Ignition electronic convertion 4.3 l/x

Which Block is the 1972 325 based on,..???

 

[Don S]

Re: Ignition electronic convertion 4.3 l/x

Don, in the future, start your own thread. Many times people that have looked at this thread won't come back because it wasn't something they wanted to comment on. Therefore, they would miss your question.<br />To answer your question, yes, any generic MARINE distributor will work. But DO NOT go with an automotive distibutor.<br />Don't have any advance specs on your 427 Chevy marine engine (See that Bondo??? )so not sure what distributors are available for them.

 

[Bondo]

Re: Ignition electronic convertion 4.3 l/x

Don't have any advance specs on your 427 Chevy marine engine (See that Bondo??? )so not sure what distributors are available for them.

Ayuh,..........I Suspected it would be the 427,.... I figured I'd Ask, instead of Guess......<br />I Know how much You Love telling Me when My Guesses are Wrong............<br /><br />I wonder if a Dist. out of a later model Big Block will Drop In,..???....<br />Say a used 454 T-Bolt IV from ebay or something,..???....<br /><br />I really like the ThunderBolt system,.........<br />Simple,+ Reliable............