About to turn 200,000 miles on my '01 2500HD and I'm in the process of replacing plugs and wires. I can find AC Delco wire set for my truck, but as far as spark plugs, I can only find AC Delco Platinum or AC Delco Double Platinum. The plugs I thought were the best for these vehicles are the AC Delco Iridium plugs which I can't find anywhere. I looked at all the major auto supply chains and even Rock Auto and they only have 1 plug left. Is this not the best plug anymore to be running in our units anymore or should I be looking at NGK Iridium plugs as a replacement for the Delcos? Thanks in advance!!!!
2001 2500HD Spark Plugs
Posted 19 March 2017 - 09:06 PM
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1998 Chevrolet K1500 Z71 - Project Vehicle | Vortec 350 | 4L60E
2002 Chevrolet Silverado 2500HD - Daily Driver | Vortec 8.1 | Allison 1000
Posted 20 March 2017 - 07:34 AM
Nothing wrong with running double plats at your mileage. NGK or AC Delco both excellent choices
Ebay 41-110 replaces 41-985, IIRC
Edited by txab, 20 March 2017 - 08:13 AM.
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Posted 20 March 2017 - 06:11 PM
Thanks guys for the responses!!! I'll take your advice and just run the platinums.
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