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 come in. Currently available in 4.00in, 4.125in, and 4.250in, strokes, these longer arms can add invaluable displacement to your build. Better yet, they are also available as rotating kits prepackaged with the correct rods and pistons for an easy inch increase.