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#1
January 9th, 2019, 06:26 PM
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Best spark plug wires??
I am replacing the spark plug wires on my GMC 4000 with 305B engine. There are lots of choices on the market for replacement spark plug wires.
Is there a brand that is consistently better than others? Price is not a factor.
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USMC Retired Pollock, LA. Own a 1961 GMC 4000 (Fontaine Flatbed) with a 305B engine 
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#2
January 9th, 2019, 10:46 PM
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Re: Best spark plug wires??
Back in the day with my 56 Chevys, I always used cold school copper wires. Solved a lot of issues. Thee is NO resistance with them babies. Lot's of EMI. Not good for radios, ECM's and modern phone hardware. (RFI). But on an old truck, who cares.
"Solid core" still used on high performance non computer vehicles. The other type is carbon impregnated fiber core with a thick silicone insulating jacket. Look at the size of inner core and resistance/insulative value of the wire to determine what you need for what motor and ignition you have. I wouldn't get too deep with this. Buy a preterminated set for 305 V6. click Last edited by AZKen; January 10th, 2019 at 03:48 AM.
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#3
January 9th, 2019, 11:20 PM
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Re: Best spark plug wires??
I have used these Summit solid core plug wires on a number of vehicles. They work good on the GMC because they have a nice long straight boot that fits into the deep well on the 305. You finish off the distributor ends with the included crimpers.
https://www.summitracing.com/parts/sum-g926
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#4
January 10th, 2019, 05:24 AM
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Re: Best spark plug wires??
I always liked original type custom fit Delco Wires.
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Drove and owned many, but some of the more interesting ones were: -'60 GMC 2500 Dump, 305 V-6 -'62 GMC 4000 Flatbed, 305 V-6 -'62 GMC 6500 Flatbed Dump, 478 V-6 -'67 GMC 7500 Box, 6V-53 Detroit -'71 GMC 9500 Flatbed Dump, 637 V-8
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#5
January 11th, 2019, 12:13 AM
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Re: Best spark plug wires??
Napa premiums have worked flawlessly for me.
__________________
"Excuse the rust I use my truck" 1964 GMC 1500 305E/sm420 4 barrel intake mod and dual exhaust. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. 1964 Chevy C20 292/SM420 1966 Chevy C10 292 hotrod 6/TKO600 My youtube channel aka Military Chevy: To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
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#6
January 11th, 2019, 10:12 PM
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Re: Best spark plug wires??
I just bought Beldin wires, not sure how they will perform but they were in my price range
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#7
January 12th, 2019, 03:37 AM
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Re: Best spark plug wires??
Beldin makes NAPA premiun wire sets.
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