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Speed RaZer

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  1. Shaved E31 Head = 9.5-1 CR

    Speed RaZer posted a topic in Engine & Drivetrain
    I am rebuilding a stock E31 head, and I'm trying to determine how much to shave the head to get around 9.5-1 compression ratio. Also interested in knowing if 280Z intake valves will work with 260Z block, I know the exhaust valves will work. Thanks anyone

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