* Year: Engine specifications can change from year to year.
* Model: Even within the same year, different models might have different spark plug requirements.
* Modifications: If your engine has been modified, the stock spark plug recommendation might no longer be accurate.
Here's how to find the correct Champion spark plug:
1. Consult Your Owner's Manual: The owner's manual for your specific vehicle will list the recommended spark plug for your engine.
2. Check the Engine Block: There may be a stamp or sticker on the engine block that indicates the recommended spark plug.
3. Use an Online Parts Catalog: Websites like AutoZone, Advance Auto Parts, or RockAuto offer online parts catalogs that can help you find the correct spark plug based on your vehicle's year, make, and model.
4. Visit a Local Auto Parts Store: A knowledgeable employee at your local auto parts store can assist you in finding the right spark plugs.
**Once you have the correct spark plug information, you can easily find the Champion equivalent. For example, a common spark plug for a 305 Chevy engine is the AC Delco R45TS. The Champion equivalent is the Champion RC12YC.
Remember: Always double-check the information you find to ensure you are using the correct spark plugs for your engine.
