While some Gen IV engines do use cathedral port cylinder heads, pretty much all are of the later, LS6 design. By 2009, cathedral port use was mostly restricted to just the 5.3L engines while all but ...

Engine knock is the sharp, metallic sound that cuts through the hum of a healthy engine. At its core, engine knock is a problem of timing. In a knocking engine, parts of the air-fuel mixture don't ...

LS engine swaps have become fairly common in the classic truck world, but it seems there still exists a bit of mystery surrounding what it actually takes to retrofit an old hauler with modern ...

The General Motors 5.7 LS1 engine was a naturally aspirated small-block V8 engine with two valves per cylinder and the traditional pushrod valve gear and two valves per cylinder, a layout that has ...

Add Yahoo as a preferred source to see more of our stories on Google. Engine knock is the sharp, metallic sound that cuts through the hum of a healthy engine. At its core, engine knock is a problem of ...

LS1 engine design highlights and basic specs, why it’s such a popular swap, and a basic timeline, from the C5 Corvette to its use in the Australian HSV heroes. The General Motors 5.7 LS1 engine was a ...