351 or 302?
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Freshman User
Joined: Jan 2007
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From: Waldo
351 or 302?
Hello everybody,
Dont mind me cuz this is a little bit of a stupid question but, my friend has a 90 F150 2x4 but we cant tell how to find out what engine is in it! 351 or 302?
Thank you
Dont mind me cuz this is a little bit of a stupid question but, my friend has a 90 F150 2x4 but we cant tell how to find out what engine is in it! 351 or 302?
Thank you
Post Fiend
Joined: Apr 2004
Posts: 6,473
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From: Lafayette, IN
Open the hood. The intake plenum (upper intake manifold) will either say "5.0 Liter" (302) or "5.8 Liter" (351) on it.
If it for whatever reason doesn't have a stamped plenum, and it's the original engine, then look at the 8th digit of the VIN--H is a 5.8L/351cc and N is a 5.0L/302cc.
Beyond that, there are ways to tell them apart based on the deck height/width and so on, but I don't know those off the top of my head.
Jason
If it for whatever reason doesn't have a stamped plenum, and it's the original engine, then look at the 8th digit of the VIN--H is a 5.8L/351cc and N is a 5.0L/302cc.
Beyond that, there are ways to tell them apart based on the deck height/width and so on, but I don't know those off the top of my head.
Jason
Lead Driver
Joined: Nov 2002
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From: Concord, NC
The EGR tube on the 351 pulls exhaust from the passenger side exhaust manifold. The lower thermostat bolt can be reached with a socket and straight extension on a 351, but is blocked by the water pump/timing cover on a 302.
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From: Rust-belt
you know i thought that was the case, cause i'm almost positive my buddys 92 bronco actually says 5.0 on it, but i knew if they did do that, it wast till 92 up that they did, so i didnt want to say anything till i knew for sure, cause otherwise id have just added to the confusion. also, someone could have swapped one from a 5.8L, or a mustang...
thanks for the clarification
thanks for the clarification
Hotshot
Joined: Sep 2001
Posts: 11,958
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Your right someone could have swapped motors at some point. The Mustang and Crown Vic intakes are different, so it probably still has the truck intake.
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My '90 has "5.0 EFI" on the top of the upper but I can't remember if my '89 did or not.
Hotshot
Joined: Sep 2001
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Really? The older trucks I have seen just said Ford Fuel Injected or something to that effect. I'm interested to know what year Ford changed that.
Post Fiend
Joined: Apr 2004
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From: Lafayette, IN
Jason
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