Spark plug conversion charts are beneficial references for professional automotive technicians and weekend mechanics alike, offering a measure of security against an improper installation. Spark plugs are such common parts and are so numerous that it is almost impossible to rely on visual identification alone. This is where a spark plug conversion chart comes in extremely handy, with just a quick
. cross reference of part numbers, a precise match is ensured. This reduces the potential for mistakes that can lead to serious damage and a great of wasted time and money.Using the wrong size of spark plug can have quite a few adverse effects on the performance of an engine, in addition to actually causing physical damage to the engine. Plugs that are too small may still seem to fit snugly and often only differences of a fraction of an inch or millimeter are involved from one size to another. This can lead to lost compression and accelerated fouling of the plugs, the pistons and the combustion chamber. The same is true for plugs that are too large, although, a larger plug will actually damage the threads of the engine, leading to the same problems of lost compression and increased carbon deposits, as well as the need for re-tapping the engine threads.Luckily, there are several great resources for ensuring that the right plugs are used for a given engine. Along with the many auto parts chains around the country, including the Advanced Auto Parts and Napa Auto Parts websites, there are also several plug manufacturers that provide cross reference charts for their own plugs and the plugs of competing manufacturers. These are extremely handy when seeking equivalents among different brands of spark plugs for the same engine. Both the Champion spark plug website, at www.ChampionSparkPlugs.com, and the Club Plug website, at www.ClubPlug.net, offer excellent conversion charts, as do many other makers and outlets that range from the NKG brand to AC/Delco and more. More reference links: http://www.championsparkplugs.com/sparkplug411.asp http://www.clubplug.net/cross.html