355 stroker

[CPT James t]

Hi all, PLS help. My little 304 has been stroked to 355 scat kit, ,running VN heads, are the standard plug length ok .want plugs are you using.

 

[Deuce]

I'm still using standard plugs on mine.
Maybe go 1 grade colder if you have really good compression numbers, otherwise stick to exactly standard.
I'm using AC Delco plugs

 

[BlackVXGTS]

I continued to use the standard NGK BPR6EF in both the 355 and 383 incantations of my VS Calais. Never had a problem or need for colder plugs.

 

[MikeC]

I don't have a stroker but every engine I own runs NGK plugs.