The Ford Barn - View Single Post

tubman · 11-05-2019, 05:52 PM

Everything I remember tells me that 1/2" reach plugs are the correct fit for Offenhauser heads. Champion "L" series plugs are 1/2" reach. I have a bunch of Champion "L" series plugs and a set of never been altered/never been installed Offenhauser 8BA heads at my shop. I will go up tomorrow with my camera and screw some 1/2" reach plugs into these heads and take some pictures and get to the bottom of this.

No offense intended, but all of this talk about "chamfers" and "spacers" should not be necessary. The engineers that designed these heads were not incompetent and would not have completely screwed up the spark plug holes on an otherwise successful design. It just makes no sense at all.

11-05-2019, 05:52 PM	#40
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 10,303	Re: Spark Plug Protrusion into Head? Everything I remember tells me that 1/2" reach plugs are the correct fit for Offenhauser heads. Champion "L" series plugs are 1/2" reach. I have a bunch of Champion "L" series plugs and a set of never been altered/never been installed Offenhauser 8BA heads at my shop. I will go up tomorrow with my camera and screw some 1/2" reach plugs into these heads and take some pictures and get to the bottom of this. No offense intended, but all of this talk about "chamfers" and "spacers" should not be necessary. The engineers that designed these heads were not incompetent and would not have completely screwed up the spark plug holes on an otherwise successful design. It just makes no sense at all.