AC Delco Iridiums
09-25-2017, 07:46 PM
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AC Delco Iridiums Right now I have ngk tr6 plugs in the car, but next time I'm wanting to try the ac delco iridiums.
Motor is 6.0 (heads, cam, forged bottom end)
Trying to figure out what heat range plug is best for me? And can anyone give me the correct part number for the ac delco iridiums?
The tr6 has a heat range of 6, I'm looking for a delco with a heat range of 5, but haven't found it.
Thanks.
Motor is 6.0 (heads, cam, forged bottom end)
Trying to figure out what heat range plug is best for me? And can anyone give me the correct part number for the ac delco iridiums?
The tr6 has a heat range of 6, I'm looking for a delco with a heat range of 5, but haven't found it.
Thanks.
09-25-2017, 08:01 PM
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Just found this
"NGK indicates the heat range in the middle of the plug number. For example, BCPR6ES-11 has a heat range of 6. (The number after the “-“ is the Gap.) NGK plugs are colder the higher the number, hotter the lower the number"
So, I'm running a colder plug than stock, which is what I think I need. Are delco heat ranges the same way? Higher number = colder plug?
"NGK indicates the heat range in the middle of the plug number. For example, BCPR6ES-11 has a heat range of 6. (The number after the “-“ is the Gap.) NGK plugs are colder the higher the number, hotter the lower the number"
So, I'm running a colder plug than stock, which is what I think I need. Are delco heat ranges the same way? Higher number = colder plug?