New engine interior

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The O ring blows out sometime.

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Molten piston.

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Modification on the oil gallery.
The ring relies higher and thus deeper in the seat.

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If you change it all in this way. Your Orange O ring will never pop out anymore.
This is the only best way to solve the problem.

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Cometic steel gasket kit and a DYNA 3000 ignition unit.

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Carrillo and JE piston mounted together.

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Rebuilding the engine...

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Last view of the nice turbo pistons...