spark plug gap for 1985 f250 460 engine
#1
#2
Under the hood to the left of the hood release lever, there should be a square/rectangular sticker that lists emissions info. It should list your plug gap there. For example, for my 81's 302, it says that a gap size from .042 to .046 is the proper gap size.
I personally would recommend using Motorcraft plugs, they're cheap but they work very well and I've never had a problem with them.
I personally would recommend using Motorcraft plugs, they're cheap but they work very well and I've never had a problem with them.
#5
★****★****Corrects park plug gap 1974 f250 360. V8. 2bbl★*******★
I'mgetting ready to changing myspark plugs and have been getting differnet info on the gap size.
The auto parts store said. 044 but the emissions sticker on my valve cover says.032-.036
For all I know thesticker on the valve cover could be from another truck at some point
The sticker also says it was manufactured in November 1973 but the truck is a1974.
Now I'm confused as I read that the gap size changed in 73/74 for the 360 .
Any help would be great I'm not a car expert .
I'mgetting ready to changing myspark plugs and have been getting differnet info on the gap size.
The auto parts store said. 044 but the emissions sticker on my valve cover says.032-.036
For all I know thesticker on the valve cover could be from another truck at some point
The sticker also says it was manufactured in November 1973 but the truck is a1974.
Now I'm confused as I read that the gap size changed in 73/74 for the 360 .
Any help would be great I'm not a car expert .
#6
#7
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#8
If you have electronic, you will have a box mounted on the fender with wires going from it to the dist.
Plug gaps are just like tires, they are a compromise between performance and plug life, just like tires are a compromise between traction(being softer) versus tread life(harder rubber).
The wider gap will raise the voltage available at the plug, producing a larger spark. But this means the ignition system has to be in top shape, and the plugs can't wear much or the gap will get too big and it will miss-fire. Too small a gap, and your spark will be small, but the plugs and the rest of the ignition will have a long easy life, even though your engine will not perform as well. So the gap is a compromise between the life of the plug and the performance of the engine. The electronic ignition has more oomph behind it, so it can stand a little bit wider gap than the old points style ignition.
Plug gaps are just like tires, they are a compromise between performance and plug life, just like tires are a compromise between traction(being softer) versus tread life(harder rubber).
The wider gap will raise the voltage available at the plug, producing a larger spark. But this means the ignition system has to be in top shape, and the plugs can't wear much or the gap will get too big and it will miss-fire. Too small a gap, and your spark will be small, but the plugs and the rest of the ignition will have a long easy life, even though your engine will not perform as well. So the gap is a compromise between the life of the plug and the performance of the engine. The electronic ignition has more oomph behind it, so it can stand a little bit wider gap than the old points style ignition.
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ssKable
Explorer, Sport Trac, Mountaineer & Aviator
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03-05-2005 12:46 PM