What coil to use with tbolt 5 ignition on 2001 5.0 mercruiser

[telstar1]

Confused. Need a coil for my 2001 mc. Seems it should be pretty generic but maybe not. Its a mc part 392 8M0079202 regular round shaped coil. No idea if its ext or int resistor. Crossover seems to be a Sierra 18-5438.Updated mc number seems to be 300 8M0078202 maybe. This is where it gets interesting. The sierra site also mentions their 18-5469 flame thrower coil which I blv is a petronix flamethrower(logo is same)Says it works with HEI ignition systems(isnt that what tbolt would be?) My mc coil failed comletely and I got things going again by swapping in my petronix flamethrower out of a truck I converted to petronix.No idea if that was a good idea but it does work. Wouldnt mind going with another flamethrower but am a bit lost as to how to determine compatibility.Are these all internal resistor coils or?Thanks for any replies

 

[achris]

Spec for the Merc coil is 0.6Ω to 0.8Ω primary resistance. Next question is 'Which Flamethrower coil do you have?', there are quite a few different ones. The one best suited is the 45001, 45011 or the 45111. HERE is the coil chart.

Chris.......

 

[Bondo]

Need a coil for my 2001 mc

Ayuh,... How did you reach this conclusion,..??

What was yer diagnostic route,..??

 

[telstar1]

engine quit,tried numerous things ,spark seemed weak changed coil started right up.