MAD AS HELL!!!! 4.6 Swap
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Freshman User
Joined: Dec 2010
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From: Kingwood, Texas
MAD AS HELL!!!! 4.6 Swap
My engine finally laid down on me after 300,000 miles, no problem w/that. I called a salvage yard & the guy told me he could have me a 4.6 in no time. After a month in a rental car he finally has me an engine. I go to pick it up & he makes a big deal out of how difficult it is to find a Windsor engine. I take the long block ome only to find that the engine I pulled outta my truck is a Romeo!!! Now the problem, I've done some research & find that I need a different flywheel & valve covers. My question now is will the '01 intake from my Romeo going to fit the '99 Windor, it's PI heads. What about the motor mounts? Can anyone tell me what other problems I'm gonna have before I get there? Please help!!!
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Joined: Apr 2010
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I had a 01 Mustang GT that had the Romeo in it, I can remember reading about the differences between the two engines. I can't remember everything, but I remember a couple of internal parts were slightly different, you can tell what engine you have from counting the valve cover bolts.
I think your engine mounts will work just fine, the intake should be fine as well. I'm not 100% on the intake though. Google it, that has always helped me find info on this kind of stuff.
Good luck.
I think your engine mounts will work just fine, the intake should be fine as well. I'm not 100% on the intake though. Google it, that has always helped me find info on this kind of stuff.
Good luck.
Post Fiend
Joined: Jan 2007
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From: Stanton DE
Not many 4.6 Windsors around. That's why it took so long to find one.
You should have no problem putting it in there other then what you said. Valve covers and flywheel.
Other then that, there the same motor, inside and out.
You should have no problem putting it in there other then what you said. Valve covers and flywheel.
Other then that, there the same motor, inside and out.
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Freshman User
Joined: Dec 2010
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From: Kingwood, Texas
Thanks for your input guys. I got everything swapped over except for the flywheel & belt tensioner. The crank has an 8 bolt pattern where the flywheel bolts up. My Romeo had a 6 bolt pattern. I've ordered 3 different flywheels for a '99 F-150 4.6L Windsor w/an automatic and they are VERY different. They look like what a standard trans would bolt to. They all have a machined surface where it looks like a cluch disc would mate to & are at least 3 times heavier. I looked near the starter for a casting # but can't find one. There's a casting # on the opposite side at the front that is F75E-6015 CA. Also when I order a belt tensioner for the '99 engine it looks the same as the one that my Romeo has. Looking at the timing cover where I believe the belt tensioner would go it has an alignment pin hole & only one bolt hole in the center to mount it. I'm at my wits end & need some help.
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