DOes anyone know of a copper plug that can be used with the CBR COP setup?

I'm currently in the middle of trying to machine some NGK R5671A-8 sparkplugs for my turbo b series. But it would be alot easier if I could just buy an off the shelf #.

I would prefer to run an NGK plug but it does not have to be specifically. Just copper and V groove would do.

if anyone know the part # that would be great.

Thanks for any help in advance.

 

yeah i got same issues.. I use those plugs and machine them down in a lathe.

otherwise you'll have to use denso IK24's or similiar..

I like the 5671a better and rather run those.

machine a bunch of extra sets so you have them handy...

 

I machined some, but it ended up being a pain in the ***. Just run the densos.