The Truth About Using 4 Valve LS Heads Today
I've spent a lot of time looking at 4 valve ls heads and wondering why we don't see them on every single high-end build at the local drag strip or car show. It's one of those topics that pops up in forums every few months, usually followed by a mix of drooling over photos and a whole lot of skepticism about the price tag. The LS engine is arguably the most successful V8 platform of the modern era, but it's famously a two-valve, pushrod design. So, when you start talking about doubling the valve count, things get interesting—and a little complicated—pretty quickly. ...