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| 75 head ngk plug number https://slantsix.org/forum/viewtopic.php?t=29982 |
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| Author: | 75customdart [ Sun Jul 13, 2008 7:32 am ] |
| Post subject: | 75 head ngk plug number |
Need help with the correct ngk spark plug for my 75 dart. What is the best plug and to use in my 75 stock motor? Thanks Cory |
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| Author: | Aggressive Ted [ Sun Jul 13, 2008 8:32 am ] |
| Post subject: | NGK Plugs |
ZFR5N for the old head, UR4 for the peanut plug heads. |
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| Author: | 65Dodge100 [ Sun Jul 13, 2008 8:36 am ] |
| Post subject: | |
See this thread Danny |
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| Author: | Wesola78 [ Sun Jul 13, 2008 11:58 am ] |
| Post subject: | |
'75 and later: UR4 or 6630 NGK. I use 'em in my '78 Volare's 225. |
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| Author: | DusterIdiot [ Sun Jul 13, 2008 12:00 pm ] |
| Post subject: | Depends on the condition and carburation... |
Either UR-4 or UR-5 will work depending on the need for a cooler or hotter plug (depending on condition of engine, carburation, timing, climate, etc...) -D.Idiot |
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| Author: | Wesola78 [ Sun Jul 13, 2008 12:30 pm ] |
| Post subject: | |
Hey D.I., which plug is hotter, and which one is colder? Thanks, Wes |
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| Author: | DusterIdiot [ Sun Jul 13, 2008 1:26 pm ] |
| Post subject: | Less is hotter... |
On NGK's site they have a decoder sheet, 2 being the 'hottest' and 11 begin the coldest... so a UR-5 is colder than the UR-4... -D.Idiot |
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