the green one with the sparkly end
Use Denso Iridium spark plugs.
d7ea
A 1968 Ford Galaxie 500 with a 390 engine should use a spark plug such as an E3 brand spark plug. This plug should have a tapered seat with 18mm threads.
a k-73 type 5
Check the Vehicle Emissions Control Information ( VECI ) decal in the front of your engine compartment ( it will show the type of spark plug to use and the spark plug gap )
Check the Vehicle Emission Control Information ( VECI ) decal located in the front of your engine compartment ( it will show what type of spark plugs to use and the spark plug gap )
Check the Vehicle Emission Control Information ( VECI ) decal in the front of your engine compartment . It will show the type of spark plug to use and the spark plug gap
The best plug to use is NGK BR10EC MIX
Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of the engine compartment , it will show the type of spark plug to use and the spark plug gap
Check the Vehicle Emission Control Information ( VECI ) decal located in the front of the engine compartment ( it will show the type of spark plugs to use and the spark plug gap )
Check the Vehicle Emission Control Information ( VECI ) decal in the front of the engine compartment . It will show the type of spark plug to use and the spark plug gap
Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of your engine compartment ( it will show the type of spark plugs to use and the spark plug gap )