Spark plug article

4spdragtop said

Here's a NGK cross reference chart I found.

View attachment 1716267262

Click to expand...

I’ve seen this chart before and it’s kinda wonky. I think it’s about 1 line off, Champion to NGK.

I think the 18-19 Champion is actually a 4 NGK so it’s off all the way down.

But it’s pretty close.