What is the cylinder layout on a 2003 Ford F-150 5.4?
The 2003 Ford F-150 5.4L Triton V8 engine has a two-plane (or split-plane) crankshaft layout. This means the cylinders are arranged in a "V" configuration, but the two banks of cylinders (three on each side) are not perfectly symmetrical in their firing order. This is unlike a typical "cross-plane" crankshaft where the firing intervals are more evenly spaced.