Well I took the head off my car because it was using water and I discovered that the head is O ringed, the gasket is solid copper and the engine is running 12 valve pistons. Can someone confirm my observations?
Are these pistons stronger than normal 8 valve pistons? What comp ratio would I have based on the dishes in the pistons? I know its low because it was gutless off boost.
I have a vrs kit coming but I'm guessing I cant use the head gasket because the head is o ringed. Can I just clean it all up and re install the copper head gasket and torque it down tighter?
I think copper head gaskets can be reused, but I once built a toyota twin cam turbo that had an o-ringed block, I used a factory head gasket and that seemed to work just fine. I never ran huge boost though so I have no idea if its suitable for big HP applications but I do use a very well respected engine guy for machinig and he never mentioned it being of any concern (he did the o-rings).
Those don't look like stock Mitsu pistons to me. Don't they all have a number in the middle?
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83 2000EX runner.
88 2.0 Black Widebody DOHC evo 6 turbo at 1.7 bar
88 2.6 White Widebody. spun a bearing.
06 2.0 Lancer Wagon. daily driver.
