crankshafts-101

  1. Go Big or Go Home With K1 Technologies LS Stroker Crankshafts

    K1 LS Stroker Crank

    K1 is flush with LS stroker crankshafts to take your block from boring to big-inch. 

    Ready to feel old? The LS engine turned 21 this year. If it were human, it would have a high-school diploma and could legally down a six-pack of beer. After two decades of LS swaps, builds, records, and race wins, it's as popular as ever, and there more of cores than ever to go around. 

    If you've picked up an LS core for your project, there's a good chance it has considerable miles on it. A bore, hone, and hot tank almost always work into the build plan, but what about the crank? The stock LS crankshaft is a stout and admirable piece, but one of the many  strong points of the LS architecture is its taller deck height (over the gen I small block) and the ability to stroke it to torquier cubic inches. 

    That's where K1's line of LS stroker crankshafts

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  2. Stroker Science: Piston Speed, Rod Angle, and Increased Displacement Explained.

    K1 Crankshaft Stroke

    An intense look at crankshaft stroke and its affect on mean piston speed, inertia, and controlling the massive, destructive forces at work inside an engine.

    Engine builders have long calculated the mean piston speed of their engines to help identify a possible power loss and risky RPM limits. This math exercise has been especially important when increasing total displacement with a stroker crankshaft, because the mean piston speed will increase when compared to the standard stroke running at the same RPM.

    But what if there was another engine dynamic that could give builders a better insight into the durability of the reciprocating assembly?

    The video above shows two engines, one with a short stroke crankshaft, and
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