- Location
- North Dakota
Just getting into superjets, what plug would I use for a 1999 701 that's bored to a 747
NGK BR8ES
NGK BR8ES FOR AFTERMARKET HEAD
NGK BR8HS FOR STOCK HEAD
JUST TO BE CLEAR.
How would a BR9ES do?
NGK BR8ES FOR AFTERMARKET HEAD
NGK BR8HS FOR STOCK HEAD
JUST TO BE CLEAR.
listen carefully. the (ES) stands for extended. (HS) is standard length, so if you put a br8es in stock head you have a chance of putting a hole in your piston!!. and the number stands for the temp degree, 7,8,9..... hotter plug hotter spark..