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Old 10-09-2002, 10:20 PM
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Post Engine swap

I have a 79 F150 with a carbed 302-wore out . I have a doner from a 85 LTD with throttle body F.I. & computer.What wiring , plumbing , and smog changes do I need to do? I'd like to use the FI for better milage . It has serpentine belts so changing all the accesories wouldn't be fun .

[ October 10, 2002: Message edited by: RevvinRich ]</p>

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Old 10-10-2002, 02:30 AM
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I would just use the long block from the donor vehicle and retain your present fuel delivery system. Straight swap...

Well...let me clarify that...you will most likely have to change a few other pieces such as the origional front timing cover and mechanical fuel pump. Just retain the emission level of the 1979 and you will be fine.
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Old 10-10-2002, 09:05 AM
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I think there is a camshaft issue as well with the mechanical fuel pump. Might plan on an electric replacement. If you go this way using the 85's timing cover you may be able to use the serpentine setup which would be fun and good for conversation. This would really be great if you have a/c in the pickup.

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Old 10-10-2002, 10:23 AM
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Well, the '85 engine would not be using the HO cam if it is CFI. Even if it did have the HO cam, one would merely change the firing order. As for the stock cover, it has the provision to mount a mechanical pump, you just have to open the casting at the mounting (may also be equipped with block-off plate) and use fuel pump drive eccentrics D0AZ 6278-A and D5AZ 6287-B.

This (1985) should be pre-serpentine as there are two drive belts, a multi-rib for the Alt-P/S, and the other accessories driven off a single V-belt.
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