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  #1  
Old 01-04-2007, 01:59 PM
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different 4.6 engines, what is the difference?

Hello all,

I am in need of a new engine for my 1998 F150. The bad motor is the Windsor (VIN 6). I have many options with rebuilts, but I would like to know the difference between all other 4.6 liter Ford motors out there.

For instance can a 4.6 SOHC motor from a 2001 Crown Victoria fit in my F150?
Can this motor fit in my truck?
http://cgi.ebay.com/ebaymotors/01-05...QQcmdZViewItem

What needs to be exact for a match with my truck, year of the motor, vehicle origin, VIN code?

Thank you.
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Old 01-04-2007, 02:16 PM
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that should work... but if you want 100% perfect fitup, get one out of your year of truck, so all the wiring and everything is the same, even though it should be for any of them. the 99+ I believe, have the PI heads, i know its 99+ for the 5.4, not 100% sure about the 4.6.
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  #3  
Old 01-04-2007, 02:37 PM
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Quote:
Originally Posted by built54
that should work... but if you want 100% perfect fitup, get one out of your year of truck, so all the wiring and everything is the same, even though it should be for any of them. the 99+ I believe, have the PI heads, i know its 99+ for the 5.4, not 100% sure about the 4.6.
This e-bay motor says no PI heads. Can you tell me what PI heads are?

Thanks.
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Old 01-04-2007, 02:46 PM
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Quote:
Originally Posted by cyman73
This e-bay motor says no PI heads. Can you tell me what PI heads are?

Thanks.

It not a truck motor - diff. manifold as well..
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  #5  
Old 01-04-2007, 03:03 PM
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Quote:
Originally Posted by built54
that should work... but if you want 100% perfect fitup, get one out of your year of truck, so all the wiring and everything is the same, even though it should be for any of them. the 99+ I believe, have the PI heads, i know its 99+ for the 5.4, not 100% sure about the 4.6.
2001 and up for PI 4.6's in F150's. Even so, there are lots of 01's that are still non-PI from Ford using up leftovers from the prior year.

So if its 2001 and up, it's about a 75% chance it's PI. 2002+ all 4.6's were PI.
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  #6  
Old 01-04-2007, 03:11 PM
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Quote:
Originally Posted by jbrew
It not a truck motor - diff. manifold as well..
So can I use a 2002-05 4.6 motor in my 1998 F150?

Are the PI heads compatible with the non-PI head intake and exhaust manifold?

Thanks.
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  #7  
Old 01-04-2007, 03:17 PM
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the non pi intake willl not work on the pi motor, the exhaust may line up but the egr tube may need modifications
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  #8  
Old 01-04-2007, 03:20 PM
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[QUOTE=cyman73]So can I use a 2002-05 4.6 motor in my 1998 F150?

1998 - 2003 5.4L or 4.6L

If you get a PI , it's to your benefit , but you will need a tune for it to rune correctly.

There 's a little more work in hooking a 5.4 up , but it's not bad..So you can consider both..

You have to make sure you get the whole motor - intake, everything..


Are the PI heads compatible with the non-PI head intake and exhaust manifold? no

Last edited by jbrew; 01-04-2007 at 03:23 PM.
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  #9  
Old 01-04-2007, 05:21 PM
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HI!... All you want to know about the 4.6.

http://www.babcox.com/editorial/ar/eb40228.htm

Heres the difference in the NON "P.I" to "P.I" heads :

Click the image to open in full size.
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"1999" F-150 XLT SPORT, BUILT 5.4, all N/A.
354RWH.P/392RWTQ (no tune, yet) on 8 cylinders/ 1/8= 8.4, 13.60E.T (on 7 cylinders, broken ring in #5), 1.8 60FT.

"2007" FORD RANGER SPORT, EC, SB, 4X2, 4.0L. 1/8= 8.8, 13.83E.T

Last edited by Neal; 01-04-2007 at 05:25 PM.
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Old 01-04-2007, 05:21 PM


 
 
 
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