i just bought this 98 expedition with a romeo 4.6, engine is siezed up, P.O. says lost ooil pressure on the interstate, then locked up.
anyway
I found a guy that has 2 crown vic 4.6 romeo's one is 98 and the other is a 03
I looked for the PI on the heads and didn't see it on either engine

I guess I need to know if I can use either of these, I'd like to use the 03

thanks

 

There should be a PI on the 03. The 98 he has should be a direct replacement so you can reuse your intake manifold and exhaust manifolds.
The 03 will require the PI intake to match the Expy. The CV intake is different.

The PI is here over the exhaust manifold
https://www.ford-trucks.com/user_gal...137666&width=2

 

03 is a romeo pi to what i know . you'll to what i've read and seen possibly have to mix and match some small things , and maybe fab some stuff if you want to keep the pi intake { i got a list of things to swap one of these things into a mn12 like my bird , but don't know how much would apply to you }thats on it . should be an all aluminum engine , saves weight , and make a good deal more hp than the dead one too . i got a line on a low mileage one here but right now with two mechanical contraptions i'm trying to play with , my flatty powered 53 , and the 95 bird , i kinda got myself stretched out ........................ on the mn12 forum i'm on these all aluminum romeo pi's and a 4 valve swap seems to be the hot ticket . on another note dont pitch the non pi heads you might have . an article i read through that forum showed that those heads when ported flow as well as pi heads and allow you to run much larger lift and duration cams than pi heads ....

 

I used the 98 crown vic engine, last weekend, what a pain in the ***, hardest engine swap I ever did

had to swap everything, timing cover, pan, intake everything

runs great now, I guess it was worth the effort

 

Good deal. Glad it worked out for ya.

 

thanks for your input