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| Plug choice https://slantsix.org/forum/viewtopic.php?t=54497 |
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| Author: | 1930 [ Sun Feb 02, 2014 5:53 am ] |
| Post subject: | Plug choice |
I read so much conflicting data on what the best plug might be for my 1986 Hydraulic engine. Right now I am running NGKUR4. I have read recently NGK ZFR5N is a better plug Any advice on this? and why make the change? |
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| Author: | DusterIdiot [ Sun Feb 02, 2014 8:36 am ] |
| Post subject: | Nope.. |
Quote: I read so much conflicting data on what the best plug might be for my 1986 Hydraulic engine. Right now I am running NGKUR4.
The stock head for your engine will not take the ZFRN plug, you are stuck with the UR4/UR5 plugs with the tapered seat...If you swap to a pre-1975 head with the drool tubes you can then use the ZRFN plug, but get other issues to work with...Leave it as is. -D.Idiot |
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