Would the rear pair of cylinders run hotter than the front pair?
Assuming the water jacket and water flow is equal to both pairs, the front pair get cooling air from the radiator (air will have absorbed heat but would still be cooler than the water) and the front exhaust headers sit in the air flow.
So could running different heat rated spark plugs could be beneficial. (I suspect the temperature difference is too small to be of consequence).
Assuming the water jacket and water flow is equal to both pairs, the front pair get cooling air from the radiator (air will have absorbed heat but would still be cooler than the water) and the front exhaust headers sit in the air flow.
So could running different heat rated spark plugs could be beneficial. (I suspect the temperature difference is too small to be of consequence).