I run UR4's in my 1978 head and they are very,very nice! They are the best plugs I have ever used.
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| Spark Plugs? https://www.slantsix.org/forum/viewtopic.php?t=27172 |
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| Author: | 75plyduster [ Wed Feb 13, 2008 5:45 pm ] |
| Post subject: | Spark Plugs? |
Which ones should I use? I heard the NGKs are good, but which one exactly? Its on a 1975. |
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| Author: | SlantSixDan [ Wed Feb 13, 2008 6:06 pm ] |
| Post subject: | |
I like NGK spark plugs a lot. The '75-up cars take a different type of spark plug than the '74 and earlier cars. Stock plug for your '75 is a # UR4. You can try going a step colder with today's cleaner-burning gasoline, to gain some ping-resistance (UR5). If you want to spend money on ultrapremium spark plugs that'll last a very long time and allow the use of a wider plug gap for better idling and driveability, it'll be a UR4IX or UR5IX. I'd recommend buying the regular plugs for now, until you figure out which heat range works best for your setup. |
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| Author: | Aggressive Ted [ Wed Feb 13, 2008 6:18 pm ] |
| Post subject: | |
I run UR4's in my 1978 head and they are very,very nice! They are the best plugs I have ever used.
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| Author: | thomasj6604 [ Wed Feb 13, 2008 6:20 pm ] |
| Post subject: | |
I'm using UR4 in my stock 1979 D-100 225 and they're working well. |
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| Author: | 75plyduster [ Wed Feb 13, 2008 6:23 pm ] |
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Ive read on other posts about the ngk plugs but it was on a '74, will the plug wires mentioned for a '74 work on a '75? |
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| Author: | DusterIdiot [ Wed Feb 13, 2008 6:32 pm ] |
| Post subject: | Yep.. |
Quote: will the plug wires mentioned for a '74 work on a '75?
That's affirm...-D.Idiot |
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