Does anyone know anything about these? Are they the 4.6 DOHC cobra motor? I found a running car that has only 60,000 on it for less than a grand and want to do the swap but i only want to if its the cobra motor. Otherwise im going to keep my eyes open for a 5.4. No point to doing a swap unless you get more power!!!

I have the rinkydink 4.6 and want some bang on a budget so im just keeping my eyes open.

What do you guys know about that platform?

 

Detailed Feature Information
Car: 1996 Lincoln Mark VIII
4.6L 8 Cylinder 280 hp Gas Engine
Specifications

Type
Gas

Number of Cylinders
8

Cylinder Configuration
Vee

Number of Valves
32

Fuel Capacity
18 Gallons

Compression Ratio
9.85:1

Camshaft Configuration
Four-Cam

Horsepower
280 @ 5500 rpm

Torque
285 @ 4500 rpm

Fuel Delivery Name
Electronic Fuel Injection

Notes and Relationships

Horsepower increases to 290 if ordered with LSC Feature Car Package

 

So its the same thing as the cobra.

If i found a compleate doner car like i have..... All i would have to do is swap the engine, wiring harness, and pcm. Can you pull the 4.6 engine with the harness intact?

 

HI!... The COBRA N/A 4.6 was rated at 305H.P (flywheel). Underated. The one you want to buy has only 285FT/LBS of TQ. The 5.4, 2-VALVE has 350FT/LBS of TQ. So you'll be giving up 65FT/LBS of TQ which in a heavy truck is a must. I'd take the 4 valve heads off that 4.6 and install them on a 5.4.

 

buy it anyways and slap er in a ranger!

 

Either way is better than my 4.6 2v. I would be gaining like 60 HP and the same torque. For about a grand...... I hope!
.
Thats not a bad increase for the money. I cant even find a running 5.4 for less than 1500. Im going to look at the Mark VIII tomarrow and drive it. The guy bought it for his project car and never started it.

 

The block and intake are different on a Mark than a Cobra.

 

There are several things that are the same, but several things that are different between the Mark VIII and the Cobra engines. The block and the bare heads are identical. The block is a Teksid block, made in Italy. There are plenty of guys running these blocks in Cobras making 800++ hp with no problems. The blocks are 4 bolt main blocks, but they also utilize side load bolts on the main caps, basically making it a 6 bolt main (reason it's so stout). Another thing they both share are the hyperutectic pistons and rods. The Cobra uses a forged 8 bolt crank, where the Mark VIII used a 6 bolt cast crank. The intakes were different between the 2 cars. There were some slight variances with the camshafts, as well as a slight difference in the valve/spring combo.

I would say the swap will be time consuming, as there will probably be plenty of fab work to do. But, it would be cool as could be when finished.

 

What kind of "fab" work. As far as brackets and stuff for pumps and what not i will be fine. But other than that is there anythin?

 

you'll have similar issues to this guys swap:

https://www.f150online.com/forums/sh...ce+interceptor

 

So i read the thread and other than a bunch of arguing about the life of a police car. I only saw one thread that said anything about fit and i got that i need to worry about oil pan clearance.

I belive it was you Tarajerame that said that.


Jbrew posted this.....

This is just one of the write ups from the link I posted earlier -

Police Interceptor Engine Specs

Those cars come with 215-220 HP Motors but the cars weight 6,000 lbs, so don't get your hopes up unless you only want the motor. Police interceptor package includes:
Silicone coolant hoses (direct swap)
High output alternator (direct swap for stereo)
3:55's-3:73's optional in the rear (will work 8.8 rear)
Heavy duty sway bars front and rear (won't fit)
Higher rate springs (won't fit)
true dual exaust (won't fit)
No posi or trac loc
Heavy duty shocks and struts (won't fit)
Addition of ignition posts and constant posts located in right kick panel
Mercury switch activated flashers in trunk
Transmission cooler (Can fit)
3 core radiator (will fit)
Ready to install light bar cable in roof headliner and junk like that.
A slightly tuned 97 t-bird motor with the intake facing to the drivers side instead of the passenger side



The only other thing on there i would have to worry about is exhast on that list. I dont have an auto so a cooler is out. ANd then to top it off the intake. It goes to the side. I would find a 4.6 PI intake off an f150. That would work...

RIGHT????

 

as long as it's the 16 valve engine then yes it will work but the intake takes you back to 4.6 truck HP and TQ.

if it's a 32 valve then you have to use a 32 valve intake manifold, ie mustang, mark 8, aviator or mercury maruader


http://www.caranddriver.com/reviews/...er.html?al=162 shows themercury marauder intake inlet on the drivers side, i'd grab an '03 marauder intake manifold, using a navigator CAI (with modified heat shield) and marauder / aviator cams on the 4 valve engine to get a bunch of low end grunt back

 

Its a 32 valve so i didn't think about that. The navigator intake comes off the right. I thought it would come out of the center like the f150's does. I konw where i could find a navi intake. That shouldn't be a problem. Would i be able to use the eshast headers off the mark 8 engine and have someone bend tubing t omatch or will i not have the clearance?

 

the navigator intake manifold will not work (even though it comes out on the center) due to the difference in deck width between the 5.4 and 4.6, you have to use a 4.6 intake manifold, mercury marauder, lincoln aviator etc...

#1: use the exhaust manifolds that are on the engine and have someone make you an exhaust and go ahead and upgrade to highflow cats ( plus H-or X- piped duals)


#2: since you have a stickshift transmission, when you swap flywheels: ensure you don't need to swap the harmonic blanacers as well (I don't know if the balance weights are different between the auto and the stickshift)

 

I will lose some low end torque with those intakes wont i? I will look into the balancers if i do the swap. I would think there differnt but i wouldn't know.

What about hte wiring harness. Do you think that i would have to extend the wires or would i have enough slack?