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Those worked good for marine use also. Anything that can withstand salt water can withstand salted roads.I've been pleased with the United Motor Products blue vented distributor cap and rotor set with brass contacts, on both my 5.7 Vortecs. I live in Houston, Texas and humidity is something we suffer with here! So on a distributor like the Vortecs have, that is prone to gathering moisture, to have a way to prevent that is great. The trucks both ran better once those were installed too.
As Shurkey said coils never die on their own. I've kept a GM ICM in my glovebox in every vehicle I've owned and never used it.Near forever, IF the coil doesn't get overloaded/excessive secondary voltage due to failures of the plug wires or some copulating anthropoid deciding that the spark plugs need a gap big enough to push a kitten through.
Oh, sure...it's going to fail someday. But there's no expected service life that I'm aware of. They either fail right away from manufacturing defects (Infant Mortality) or they last indefinitely, often murdered by a failure "downstream".
If you're concerned, you could buy a respected-brand-name replacement module and coil, or you could do what I do. I grab OEM modules, coils, entire distributors, etc. out of the Treasure Yard, for pennies on the dollar compared to "new" cost. Test-run the parts BEFORE the original stuff fails, then keep 'em in reserve--in a plastic bag in the glove box, or wherever it's convenient. When (if) you have a failure on the road...you've got a proven-good replacement handy. Of course, the tools you need to change 'em will be at home, so you'll still be screwed.
No.Is it safe to say that the pickup coil has the same " near forever " life span as the coil and ICM ?
Did you assure that the screen vents are clear of debris? Aside from that, sounds good.Then I removed the ICM and cleaned up the mounting area / base plate with carb and choke cleaner and a rag to remove the old thermal past and crusty debris , and then re-mounted the ICM with Artic Silver.
Magnet cracked through the rivet, near the Copyright symbol.reading about some Magnets in the distributor , that I can not see )
I disagree, I have seen the insulation material crack and split and then they arc out internally.As Shurkey said coils never die on their own. I've kept a GM ICM in my glovebox in every vehicle I've owned and never used it.