Spark Plug question
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Senior User
Joined: Jul 2017
Posts: 136
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From: Fort Wayne IN
Spark Plug question
My 1978 F150 has had the engine swapped and I have no idea what year it came from, so little unsure where to start looking for spark plugs.
Do the FE engines use the same plugs? SO 360, vs 390?
And does it matter on years?
Do the FE engines use the same plugs? SO 360, vs 390?
And does it matter on years?
Fleet Mechanic
Joined: Aug 2004
Posts: 1,310
Likes: 31
From: Nevada
plug
Base plug # is Motorcraft BSF42C and there are dozens of cross references from that part #, I haven't seen a heat range difference between the FE360 and 390, I ran those Motorcraft plugs for a bit and they worked just fine in my 360 turned 390...........
Fleet Mechanic
Joined: Aug 2004
Posts: 1,310
Likes: 31
From: Nevada
great
Should work like a champ, and they typically come at Gap .044 I think, but always worth double checking.... Plus the price of the motorcrafts where silly.... Spark plugs in general are getting ridiculous
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Senior User
Joined: Jul 2017
Posts: 136
Likes: 0
From: Fort Wayne IN
I will double check the the gap for sure.
I wasn't really planning on putting in spark plugs but one of the big auto parts stores has a sale if you buy 4 platinum plugs you get $10 rebate card. That was a good deal but add in the $20 off I have for their reward club it was a great deal.
AP45 @ $3.09 each $24.72
Tax $1.73
Total $26.45
Loyalty reward -$20.00
New total $6.45
Then I get a $10 gift card for what I'm sure I will be buying next month. Not bad for 8 plugs.
I wasn't really planning on putting in spark plugs but one of the big auto parts stores has a sale if you buy 4 platinum plugs you get $10 rebate card. That was a good deal but add in the $20 off I have for their reward club it was a great deal.
AP45 @ $3.09 each $24.72
Tax $1.73
Total $26.45
Loyalty reward -$20.00
New total $6.45
Then I get a $10 gift card for what I'm sure I will be buying next month. Not bad for 8 plugs.
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