What plugs are u using for a 428 CJ motor? Old style or modern ones?
Original BRF32 Autolite plugs.
Quote from: csheff on September 06, 2021, 06:03:46 PM
What plugs are u using for a 428 CJ motor? Old style or modern ones?
New
BF32s . I still have a stockpile .
I use NGK and I´m happy with them
NGK #WR5 ;)
Scott.
I still "tune" with champions. They are cheap. I can go through them without too much worry and their heat ranges are accurate.
Once I settle on the range, I use a better plug. BF32's never were quite right but are what the original engineering specified often. The issue was probably never the plug but a weak ignition system?
If you look at the current application charts, those have been replaced by BF42's which are still available.
NGK's I find to be a very high quality plug. It's heat ranges seem to be very accurate.
In the case of my 67 GT500, I never expected the original plug to be a BF42. Huh?
Thanks guys
NGK WR5 is a good plug as well.