28-12-2020, 04:20 PM
I've never experienced plug oiling with a '37 head, or perhaps I'm just too thick to notice it. Or maybe I've been lucky.
What I have done though is warp an alloy head like a Smith's crisp through an overheating incident (several hundred miles from home), which is why I tend to prefer cast iron.
I'd suggest using a corrosion inhibitor with one of these alloy heads, as replacing the outlet branch seems not to be an easy option.
What I have done though is warp an alloy head like a Smith's crisp through an overheating incident (several hundred miles from home), which is why I tend to prefer cast iron.
I'd suggest using a corrosion inhibitor with one of these alloy heads, as replacing the outlet branch seems not to be an easy option.