I have used both the cast alum and the stamped covers on my type 4. The stamped ones are lighter and do not leak. I use non hardening prematex on the cover side only and nothing on the head side.
Orma
I have used both the cast alum and the stamped covers on my type 4. The stamped ones are lighter and do not leak. I use non hardening prematex on the cover side only and nothing on the head side.
Orma