Chevrolet V8 engines are numbered from 1 to 8, with odd-numbered cylinders on one bank and even-numbered cylinders on the other; cylinder 1 sits at the front of the engine on Bank 1.
In practice, Bank 1 contains cylinders 1, 3, 5, and 7, while Bank 2 contains cylinders 2, 4, 6, and 8. The standard firing order used by most Chevy V8 engines across generations is 1-8-4-3-6-5-7-2.
Bank layout and numbering
To quickly identify which numbers belong to each bank, remember that Chevy V8s use a two-bank layout with odd numbers on one bank and even numbers on the other.
- Bank 1: cylinders 1, 3, 5, 7
- Bank 2: cylinders 2, 4, 6, 8
In short, the odd-numbered cylinders ride on Bank 1 and the even-numbered cylinders ride on Bank 2, providing a straightforward way to map plugs, wires, and valve components to the engine’s banks.
Locating cylinder 1 and engine orientation
Knowing where cylinder 1 sits helps with diagnostics, spark plug changes, and distributor alignment. The following notes apply to most Chevy V8 families (small-block, big-block, and LS), but exact visual positioning can vary slightly by generation.
- Cylinder 1 is located at the front of Bank 1, closest to the timing cover and belt/pulley side when viewing the engine from the front.
- The numbering continues along Bank 1 as 3, 5, and 7, while the opposite bank carries 2, 4, 6, and 8 in corresponding positions.
- The typical firing order for Chevy V8s is 1-8-4-3-6-5-7-2, which informs ignition coil/distributor timing and spark-plug wiring layouts.
Understanding these layout rules helps with routine maintenance and troubleshooting, and it remains a useful reference when consulting shop manuals or carbureted/EFI diagrams for a Chevy V8.
Practical notes by engine family
While the two-bank, odd-vs-even numbering scheme is consistent, the visual orientation of the banks can differ slightly between the small-block (SBC), big-block (BBC), and LS-series engines. Always confirm with the specific factory manual or a trusted diagram for your exact model year to avoid misidentification during work.
Summary
Chevrolet V8 engines number cylinders 1 through 8 across two banks: Bank 1 contains cylinders 1, 3, 5, and 7, and Bank 2 contains cylinders 2, 4, 6, and 8. Cylinder 1 sits at the front of Bank 1, and the common firing order is 1-8-4-3-6-5-7-2. This layout applies across Chevy small-block, big-block, and LS-family engines, with minor visual differences by generation. For precise wiring and timing, consult the engine’s specific service manual or a verified diagram for your vehicle.)