Cylinder layout for silverado 1500 5.3?

The 2007-present Chevrolet Silverado 1500 with the 5.3L V8 engine uses an even-fire order layout. This means the cylinders fire in a sequence that balances the engine's power strokes to reduce vibrations. The exact firing order varies slightly depending on the specific year and some internal engine configurations, but it's generally one of these:

* 1-8-7-2-6-5-4-3 (This is a common firing order for the 5.3L)

* 1-8-4-3-6-5-7-2 (Less common, but possible)

You'd need to consult your specific vehicle's owner's manual or a reliable online resource (like a repair manual specific to your truck's year) for the precise firing order. The firing order is usually found either in the manual's engine specifications section or on a sticker under the hood.