* Engine Variations: The 454 engine was used in various Chevrolet models, and even within those models, there could be different configurations (e.g., different heads, ignition systems).
* Year-Specific Details: Spark plug order can change from year to year within the same engine model.
How to find the correct information:
1. Consult your owner's manual: The best source of information is your vehicle's owner's manual.
2. Look for an engine sticker: Often, there's a sticker on the engine itself that indicates the spark plug order.
3. Use a repair manual: A reputable repair manual specific to your vehicle's year and model will have the spark plug firing order.
4. Contact a mechanic: If you're unsure, a mechanic can easily tell you the correct spark plug order.
Remember that changing spark plugs requires some expertise, and it's important to follow the proper procedures to avoid damaging your engine.
