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#2132666 - 09/04/10 08:00 PM will an 07 engine fit a 93

Registered: 01/09/10
Posts: 326
will an 07 engine fit a 93 if i change everthing over cept the intake and valve covers...meaning i transfer everything over from the 93 engine to the 07 block cept the valve covers and intake...any suggestions? as of right now this is the only fix that my brother has...the problem he is havin is now its really blowin the blue stuff out the tailpipe..i guess i could get the heads re-built..but still the bottom half will have more miles then the top after rebuild..

#2132735 - 09/04/10 10:35 PM Re: will an 07 engine fit a 93 [Re: BLUE99CROWNVIC]
Corsair Offline


Registered: 07/17/05
Posts: 376
Loc: Port Wentworth,Ga
only up to 2000. after that, their P.I. engines. Performance Improved. We have to use original intakes, which have a diff bore than our intakes. you have to modify the intake gaskets. keep the original harmonic balancer with flywheel. swap over threaded water pump. yes, you can do it. just get the custom intake gaskets or modify yourself.
2001 CVPI, 3.27, LED spotlight, J-Mod, plus a few bells & whistles.

#2132747 - 09/04/10 10:57 PM Re: will an 07 engine fit a 93 [Re: BLUE99CROWNVIC]
TheShadow Online   content

Over the Hill

Registered: 05/01/07
Posts: 1735
Loc: SoCal High Desert
No, unfortunately. Lots and lots of changes occurred over those 14 years. The intake would have to be changed or extensive mods to the engine controls, EGR, etc. would have to be done, which also opens up the PI-head/nPI intake can o' worms. The oil pan would most likely have to be changed to accomodate fit in the frame. The valve cover bolt holes may or may not fit, dependent on which plant the engine was made in - a test fit would have to be done. Then the timing cover may not accept the power steering pump (check to see), the coil pack mounting brackets (again check to see), etc. And those are major issues that I can think of off the top of my head...more gremlins may be waiting...

How many miles on the 93 engine, and what kind of servicing was done? Maybe you could rebuild the whole thing, if it's worth it (probly at least $1,500 to do it halfway decent). With blue out of the exhaust, rings/pistons/cylinders could also be worn out.

Another option would be to find a 2000 or earlier engine (nPI heads which would be a more direct swap. Still some things to be done (reuse the 93 intake - direct bolt-up, I think), but much less extensive.
'95 P71, 5xx,xxx miles, Rebuilt tranny, 2.73. Lives as a cab, and will die as a cab. (Died-FrontEnder)
'96 P71, 640,xxx on original drivetrain. (Now parts car - T-bone & roll)(You should see the roof - A,B & C-pillars chopped on driver side)
New to list: '96 MGM (Nice! @ 35x,xxx), '97 CV P71, '98 CV P71, '00 CV P71, 01 P71 (2 of 'em) '03 CV P71 (Nice so far) (All Ford Zinc Yellow w/Black decals & trim) And the list is growing...........
Taxicab mechanic: I HATE DRIVERS!

#2132933 - 09/05/10 12:06 PM Re: will an 07 engine fit a 93 [Re: TheShadow]
GrandMarq9807 Offline
Over the Hill

Registered: 05/10/10
Posts: 4420
Loc: Virginia
The early 4.6 is notorious for having valve stem seals fail by 100K or less... If it has high miles, you can bet they are bad which is causing the smoke and oil consumption...

My buddy that bought my '93 just replaced it's seals, smoke is history...
1998 Grand Marquis LS. 96K mi. .. Stock
2007 Grand Marquis GS. 90K mi. .. Stock
1996 F-150 XLT 196K mi Beater, Stock

----------My Toys---------(links are up)
1969 Fairlane Cobra 428CJ 4-Speed
1972 Comet GT Restomod 306, C4
1988 Turbo Coupe 331 AOD & 3.73 .. Pressurized ½ Motor is History

*****************NEW TOY!!!*********************
1969 Base Fairlane 302, C4, 45K mi(really!)

Now with P/S & PDB
Gonna wake it up with a Blue Print headed 347

#2132949 - 09/05/10 12:44 PM Re: will an 07 engine fit a 93 [Re: GrandMarq9807]
BigMerc96 Offline

I know nothing
Posting Addict

Registered: 06/05/10
Posts: 19868
Loc: I can see Detroit from here!
Yeah, its probably valve seals. Replacement seals are like $70 IIRC, and it would be a lot easier than trying to get a '07 motor to work (not to say it couldn't be done). Of course, inspect the engine to be sure its the valve seals first.

2006 Audi A6 ~132k miles, stock.
1998 Mercury Grand Marquis LS HPP ~100k miles, slowly acquiring modifications.
1997 Town Car Cartier ~145k miles, Ported Plenum, Gutted Airbox, Contour E-fan Retrofit, Dual exhaust with Magnaflows, cats deleted, MSD Ignition, KYB Gas-A-Justs, P71 front bar, air ride reinstated, Projector retrofit, Caddy 4-note horn retrofit, Wood rim steering wheel retrofit, holistic weight reduction as the parts fall off..
1996 Mercury Grand Marquis GS 117,485mi. R.I.P. 7/14/12 frown

#2133051 - 09/05/10 03:46 PM Re: will an 07 engine fit a 93 [Re: BigMerc96]
Steve83 Offline


Registered: 10/03/04
Posts: 7454
Loc: Memphis, TN 38060, USA, Earth,...
If you're going to use an '07 engine, it's better to keep it ALL new: rewire the car so the engine can run exactly the way it's designed to. That's how I put a '00 engine into my '94 CV, a '95 engine into my '83 Bronco, an '88 engine into a friend's '75 Bronco, and how Quint put an '04 engine into his '78 Bronco.
Walk softly & carry a BIG SIX ! ! !

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