Hemi guys - question on spark plug tube seat in head

[AR67GTX]

Pulled my left valve cover again today to try to seal up the gasket again and for the first time happened to notice one of my tube seats in the head looked like it was missing an o-ring or seal at the top - compared to the other ones. After taking a picture and enlarging it I now don’t think it is missing a seal - I think it’s just a different type of seal probably. The finish is a little different from the others.

So, just out of curiosity I thought I would ask now to see if anyone can identify them from this top view - Moroso, Milodon, Mopar, Ray Barton, ?? The purple-ish one is the odd ball one the other 3 on this side are like the right one.

thanks

 

[Runcharger]

Purple one is Milodon, never seen the other one.

 

[snakeoil24]

Sombody played mix them up

 

[pnora]

I think the one on the right is Keith Black.

 

[Fran Blacker]

Bought my Milodon mine 1971 ish blue.

 

[Jerry Hall]

Damn they come in multiple colors, mine are red on my un-installed Hemi.

 

[dadsbee]

Maybe they're like aircraft bungee cords, the colour is their date code! LOL

 

[6PKRTSE]

Damn they come in multiple colors, mine are red on my un-installed Hemi. View attachment 1596616

Mine are red on mine also. Hard to see but these are under the rocker stands.
O.P. may be leaking if they are different heights being that some are all mix matched.

 

[AR67GTX]

Keith Black maybe - OK thanks

Went back through my pictures and it looks like there is one Milodon in the back of the right head too. So yes, some mix and match. Hadn‘t noticed them before. With new tubes they seem to seal fairly well - at least until I pull the plugs out. But I guess some oil collects in the bottom of the seat, behind the tube.

thanks