engine swap in a 4x4
Tuned
Joined: Mar 2004
Posts: 281
Likes: 1
From: Petersburg, MI
The eec is the computer, need a 351 computer for a 351 efi engine. Yes some have said they kept the 302 eec and it worked fine but I wouldn't trust it in the long run especially on a speed density system. With the wrong eec you won't be putting in enough fuel so it will be running lean, which is not good(i.e. bad). Need a different timing chain cover because you're talking about a carb'd engine which uses a diff style timing chain cover so the accessory brackets and water pump won't bolt up like they're supposed to if you want to keep the serpentine belt, which you should. This is probably also what Kem was talking about with the accessory brackets.
Cargo Master
Joined: Dec 2003
Posts: 2,735
Likes: 38
From: Sunny Florida
I believe the serpentine belt set ups use a reverse rotation water pump and this could be the reason why and different timing cover is needed. I am not 100% sure on this but I recall something about the pumps being revers rotation.
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Junior User
Joined: Jan 2005
Posts: 68
Likes: 0
From: Victoria Canada
The windsor I am using already has all the belts and pulleys installed. Does this mean that I won't NEED to change the timing cover?
I have the upper and lower manifolds, the new distributor, new oil pan and pick-up. Aside from the eec and new cam is there anything else I am going to have to buy to get this thing running?
I have the upper and lower manifolds, the new distributor, new oil pan and pick-up. Aside from the eec and new cam is there anything else I am going to have to buy to get this thing running?
Hotshot
Joined: Jul 2002
Posts: 14,285
Likes: 12
From: Bend,OR
the 302 uses the serpentine belt setup. your 351w does not. if your going to go efi on your 351w you need to change the front timing cover and get a reverse rotation water pump to use the serpentine belt system. then use the brackets from your 302 onto the 351w.
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Junior User
Joined: Jan 2005
Posts: 68
Likes: 0
From: Victoria Canada
but why do I need to run the serpentine belt setup? Are my chrome pulleys not good enough for efi?
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Junior User
Joined: Jan 2005
Posts: 68
Likes: 0
From: Victoria Canada
Ah. I am going to swap all the efi off of the 302 and onto the 351. I think I have everything now, aside from the cam. I was out to look at the bronco today (it's not at home yet) and it is running seperate belts (not serpentine), so I am assuming that the cover will be the same anyhow. The windsor is running a 'LeMans' cam in it right now. My dad has no idea what the specs are on it now, it has been far too long since he last thought about it. I wonder if a performance carb cam, will work in there. probably not.
Hotshot
Joined: Jul 2002
Posts: 14,285
Likes: 12
From: Bend,OR
the upper/lower intake from your 302 will not fit on your 351w. you know that right.
if the 302 is running seperate belts then your all good there. as for the cam it needs a lob seperation of 114* so a compcam 35-255-5 is a great upgraded cam.
good luck and have fun
if the 302 is running seperate belts then your all good there. as for the cam it needs a lob seperation of 114* so a compcam 35-255-5 is a great upgraded cam.
good luck and have fun
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