What is a good spark plug, and number for a 66 289 Hertz,,,all stock
Quote from: Hertz74 on May 07, 2019, 04:27:07 PM
What is a good spark plug, and number for a 66 289 Hertz,,,all stock
Besides the factory recommended BF32 for a stock 66 289 hipo ?
I agree with Bob that the "best" plug is the BF32 . These were made by the millions and are usually available. To use something else would depend on your driving needs. A sunny day cruiser "could" be OK with a slightly hotter plug if driven at less than full throttle. And on the other hand driving at full throttle ( like a tack event) would certainly warrant a colder plug than the BF32.
IF you can't find Autolite/Motorcraft plugs , I have had good luck with NGK and not so good luck with Champion ( F9Y)
Randy
I have had good luck with Autolite 45s.
Quote from: CSX2259 on May 08, 2019, 12:21:44 AM
I have had good luck with Autolite 45s.
A basic Autolite 45 is all one needs for any 65-67 289 HiPo engine. It is wide range plug that works well in both the supercharged and N/A HiPo 289's. I used them for 25+ years in the 289 HiPo engines in all types of tune, and usage. Both on and off the track.
No need for the pricier Autolite 45P and 45PP plugs.
Z
It takes a whole bunch of hard luck for me to not prefer a made in America product.
Having said that, I firmly believe NGK makes the best quality, most reliable plug on the market today.
Thank you all, for the coments
NGK spark plug w/ stock 289 iron castings, WR5 stock #2438.
Scott.