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A Camshaft's Time to Shine

The April 2018 digital edition of Modern Machine Shop covers topics such as camshafts, data for incentives and 3D printing.

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Comp Cams’ line of aftermarket camshafts for GM LS engines look shinier than they once did. However, that was just a side benefit of revamping its grinding operations and implementing a centrifugal barrel finishing process. The real goals, which the company achieved, were to minimize the waviness across lobe surfaces as well as remove tiny peaks of material that grinding left behind. This increased the surface-bearing area between lobes and their mating lifters to lower the stress on lobes during operation for improved durability and reduced valvetrain noise.

Also in this issue of Modern Machine Shop: