RBS stocks the most common alcohol Hemi/481x NGK #2773 spark plug. NGK has long been the racers choice for blown alcohol applications due to the easy to read cad plating which is critical in helping the racer understand there tune up. Wrench hex is 13/16".
Plugs are sold individual. Please use drop down as there is a discount in the amount that you buy. The more you buy the more you save!!!!!!!!!!