Building Stroker LS Engines
What is so great about these LS engines? First, the LS engine has multiple design features that help it achieve near-big-block levels of horsepower. With a 15-degree valve angle, intake ports that flow 300 cfm and a 55mm camshaft diameter, one can see what the engineers at GM were after when designing these engines – efficiency and performance.

408 LS Engine
Whether his customers need 300 hp or 2,500 hp, Luke Siebert of Siebert Performance has them covered. His shop specializes in performance engines and carburetor work, and churns out gems like this 408 LS engine for bracket racing. Find out the details of this 740 horsepower engine.
