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cylinder head

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    Report: Chrysler dealers fixing Pentastar V6s due to cylinder head issue
    1344974400

    Automotive News reports that Chrysler is replacing the cylinder heads on certain Pentastar V6 engines with "more robust" parts. The automaker hasn't detailed the problem behind the replacement, but says that there were around 1,300 vehicles across the country over the past few weeks waiting for ...

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    Lotus develops integrated exhaust manifold
    1173963720

    Lotus, the company that made its name on "adding lightness" and clever engineering, is at it again. This time, it's the engineering wing of the Group Lotus concern. Lotus's efforts have been directed at banishing seperate exhaust manifolds. We groaned when we heard the news, and assumed it to be a ...

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    Behold the cam-less future
    1166812440

    Mechanically actuated valves may soon be a thing of the past. We've made over a century's worth of improvement on the same basic combination of a camshaft, followers (or lifters), a poppet valve and a spring. We've gone from using pushrods and rocker arms to actuate the valvetrain to direct-acting ...

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