Inside the hardware: how each valvetrain works Once you look inside the engines, the mechanical contrast becomes obvious. In a pushrod OHV V8, the single camshaft in the block spins at half engine ...

GM’s Chevrolet LS engines redefined the pushrod V8 to give us one of the most dominant performance platforms of the modern era. What we refer to today as the LS family of engines usually refers to the ...

Pushrod engines may not be as popular as they used to be, but to paraphrase the old Mark Twain misquote, "The reports of its death are greatly exaggerated." In fact, GM recently announced it was ...

What we refer to today as the LS family of engines usually refers to the third and fourth generations of Chevrolet’s small-block V8. But to understand the relevance of these engines, and what makes ...