Ignition coil question

littlebookworm

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Finally putting together the GM 5.0 1983 engine with Thunderbold IV ignition. I have a new coil from my previous engine/boat, 1980 5.7 GM with Mallory distributor and points. I checked on the iboats list of parts numbers and the coils used may be the same, but I was under the impression that marine electronic ignition coils are diffrent from points ignition coils. Am I wrong in that the two coils are the same and I can use the one from my previous engine? It's not a big expense to replace, but if I don't need to, I'd rather use the money for something else.
 

Bondo

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Re: Ignition coil question

Ayuh,.....

If you cross reference the #s,+ they Do Match,.......

Go for it.......
 

Don S

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Re: Ignition coil question

They are NOT the same coil.
The Mallory takes a Mercruise coil # 392-806529A1 while the Thunderbolt uses a 392-805570A2
 

littlebookworm

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Re: Ignition coil question

Help!! Don, Bondo, I respect and appreciate both of you for your knowledge and expertise. Now you both disagree. Whom do I follow?
 

Coors

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Re: Ignition coil question

wait until the PM's stop between them...
 
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littlebookworm

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Re: Ignition coil question

Boy, I can smell their computers burning up from here!!
 

Don S

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Re: Ignition coil question

We didn't disagree, Bondo says if your numbers cross they should work. But your numbers SHOULDN'T cross. They are different coils.
 

littlebookworm

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Re: Ignition coil question

Once again, thank you for your help. A new coil it is. Hy
 
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