What engine do I have?
Postmaster
Joined: Feb 2003
Posts: 4,074
Likes: 1
From: Las Vegas
Gentlemen, the easiest way is to simply look where the water pump bolts to the block right under the head.
If there is aprox. an inch of space between that bolt boss and the head it is a 351.
If the head looks like it's right on top of that bolt/boss it is a 302.
If there is aprox. an inch of space between that bolt boss and the head it is a 351.
If the head looks like it's right on top of that bolt/boss it is a 302.
Junior User
Joined: Aug 2004
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From: JBER, AK
If it is a 5.8 the tube from the EGR will run straight down to the passenger side exhaust manifold. If it is a 5.0 it will run back along the engine, i don't know where to but that is how I tell quickly at a junkyard.
Gurahl, and his Bronc'nstein
Gurahl, and his Bronc'nstein
Senior User
Joined: Jun 2004
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all the 302's ive seen only say ford fuelinjection on the upper intake..the 351's say 5.8 efi...now another way to look is take onea ur head bolts out and measure the diameter, 5.8l= 1/2 and the 302 is like 15/32's orsumthin. and as for the oil pans, from what ive heard there different. ive got a 5.8 and 5.0 and neither ofem had anything other then ford stamped on the valve covers. course there both efi so that may make a difference.
Senior User
Joined: Jul 2005
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Originally Posted by kameronth
Right now the only thing I can think of is the knock sensor. I am almost positive that the 351 does not have one. It is located at the back of the block on the drivers side.
This is a for sure thing as 5.8L did not use this at all. Also they don't use a power steering pump pressure switch on the line.-Bob
And if someone put a 302 in there they would have to fab up a harness for the knock sensor and pressure switch.
Last edited by slickerthanyou; Jul 15, 2005 at 05:17 PM.
Senior User
Joined: Jul 2005
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Originally Posted by DOHCmarauder
Wow, all this when all that needs to be done is look at the area where the block meets the head..............pulling head bolts, checking for knock sensors 
you guys are a stubborn bunch.
you guys are a stubborn bunch.
Originally Posted by captian p4
But its fun making the job more difficult than it needs to be!
. Just do one of them to get your answer.
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Postmaster
Joined: Feb 2003
Posts: 4,074
Likes: 1
From: Las Vegas
It's cool.
To be honest, I've worked on/owned both and I'm not 100% sure I could identify the knock sensor right off. But you're right, I would attempt to do that before pulling a head bolt. (I would still check the deck heighth first, though
)
BTW, if anyone still cares, the pan rails are wider on a 351........so I'm kinda of thinking that if a 302 oil pan gasket fits...........if it walks like a duck, etc........... it must be a duck.
To be honest, I've worked on/owned both and I'm not 100% sure I could identify the knock sensor right off. But you're right, I would attempt to do that before pulling a head bolt. (I would still check the deck heighth first, though
)BTW, if anyone still cares, the pan rails are wider on a 351........so I'm kinda of thinking that if a 302 oil pan gasket fits...........if it walks like a duck, etc........... it must be a duck.
Thread Starter
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Freshman User
Joined: Jan 2004
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Hi All,
I looked as best I could at what you all mentioned and it actually looks like I have the original engine..351W...I wanted to post some pics of the engine below plus the stircker which I cleaned off one of the valve covers...but I am still trying to figure oout how to add pictures..
I looked as best I could at what you all mentioned and it actually looks like I have the original engine..351W...I wanted to post some pics of the engine below plus the stircker which I cleaned off one of the valve covers...but I am still trying to figure oout how to add pictures..
