The front-most cylinder on the passenger side bank of the Chevy small-block V8 350 is Cylinder 1. It sits at the front of the engine on the right-hand side when viewed from the driver's seat.
Cylinder numbering layout on the Chevy 350
The small-block Chevy uses two banks of four cylinders. The front-most cylinder on the passenger side bank is Cylinder 1, and the numbers climb 1–4 toward the rear of that bank. The opposite bank (driver’s side) starts with Cylinder 5 at the front and runs 5–8 toward the rear. This arrangement aligns with the common firing order for the 350: 1-8-4-3-6-5-7-2.
Practical implications for maintenance
Knowing the exact location of Cylinder 1 is crucial for tasks such as setting ignition timing, wiring the spark plug wires in the correct order, performing cylinder-specific compression tests, and diagnosing misfires. Misidentifying cylinders can lead to timing errors or wiring mistakes and potential engine problems.
Before you reference this two-bank layout, here is a quick reference to the layout so you can quickly locate each cylinder on a typical Chevy 350 engine:
- Passenger-side bank (front to rear): 1, 2, 3, 4
- Driver-side bank (front to rear): 5, 6, 7, 8
With this layout in mind, the number 1 cylinder is located at the front of the passenger-side bank, and the firing order wiring follows the standard 1-8-4-3-6-5-7-2 sequence.
Summary
For a Chevy 350, Cylinder 1 is the front-most cylinder on the passenger side bank, with cylinders 2–4 behind it and the opposite bank starting with Cylinder 5 at the front (5–8 toward the rear). This layout supports correct timing, ignition wiring, and diagnostic procedures.