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ej25 phase 2 heads on ej25 phase 1 block

logic23
in Subaru Transplants

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Wondering if anyone has done this? I have several good phase 1 lower ends and several phase 2 engines with good heads. case looks like it would work:pulley location and size look identical head gaskets look the same. compression ratio might be different due to piston shape. Any thoughts? thanks

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