congrats on an excellent thread. i see so many housings w plug hole cracks or carbon evidence of distortion at the plughole...
i really like the longitudinal (Cp1) grooves to add surface area. i also like the idea of welding the sleeveholes closed to help the coolant.
excuse me but i have got to go as i have some welding to do...
this thread is definitely heading in an important direction.
hc
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