Wf spark plug

[modifiedman]

Ok should know this but what plug do you use for the WF head ?
have a head but need to know the plugthere is not
one in it.

 

[yalipito]

Ok should know this but what plug do you use for the WF head ?
have a head but need to know the plugthere is not
one in it.

Champion RG519HC

 

[modifiedman]

Thank you I could not remember what it was

 

[jjchat]

10mm plug. The ND plugs are much better than the champion.

 

[gregp07]

I drilled and tapped mine on my open motor to use 14mm like everything else I have. Have an Animal with big valve WF head on an open.