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Heads and Compression

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    Heads and Compression

    Few noob questions here.... If I'll be running a gt35 or gt40 turbo on an s52, would it be really beneficial to get the heads reconditioned/redone, whatever it's called, and the valve seats redone as well before I drop it in the e30. How much extra work would that be?

    Secondly, what is the compression rate supposed to be on an s52. I want to check each cylinder before I pull the engine. Thanks.
    1989 E30 Zinnoberrot Vert 325i OBD1 S52 turbo;IP
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