what are the exact numbers for the acdelco platinum or double platinums? Because the person at parts store only sees plats, for supercharged engines not NA'*.

Help just need quick answer on spark plug #'* or if it doesnt matter if i use the plugs that are said to be in the */C engines?

thanks a tonn yall,

The platinum plug is ACDelco Part # 41-940. However, the plugs are easy to change so you could save money by using the # 41-601 standard plug. Performance is the same, however, the platinum plug can last longer. Do not use the platinum plug in the superchaged engine.

Read the sticky NGK Tech Talk in Performance and Brainstorming.

k thanks guys,
so i can use the same plugs as */c?

thanks

chad