YACT: 5.0L or 4.6L?

[eldorado99]

Now I'm after a early-mid 90s town car and I notice that the earlier ones (90-91 or 92) Have the 5.0L engines which I believe are straight out of the mustang. The later ones have the same 4.6L that is in the crown victorias today, what is the comparison?

 

[notfred]

Those two blocks have had a ton of different heads and intakes on them over the years. I don't know what exactly is in a town car.

I've owned both the 5.0 and 4.6, but they were both in Mustangs, and the 4.6 was a quad-cam motor, which I doubt is in an early 90's town car.

 

[eldorado99]

how was the 5.0 at least?

 

[notfred]

Originally posted by: eldorado99
how was the 5.0 at least?

It was easy to work on. Mine ended up pretty highly modified.

 

[MikeMike]

Originally posted by: notfred

Originally posted by: eldorado99
how was the 5.0 at least?

It was easy to work on. Mine ended up pretty highly modified.

and stolen. and on ebay

 

[Bullhonkie]

Originally posted by: nourdmrolNMT1

Originally posted by: notfred

Originally posted by: eldorado99
how was the 5.0 at least?

It was easy to work on. Mine ended up pretty highly modified.

and stolen. and on ebay

:brokenheart:

 

[eldorado99]

ok.. well anyone else?

 

[crab]

My mom's 91 Crown Victoria has the same lo-po 5.0 thats in that TC and hers is 150hp/250ft/lb.

Its not the H.O. from the mustang unless its a Mark VII.

 

[mercanucaribe]

The 4.6 will have more horsepower. My dad's Town Car has 200.. It's not any slower than my 240sx at least.

150hp out of a 5.0L is atrocious!

 

[Insane3D]

Originally posted by: crab
My mom's 91 Crown Victoria has the same lo-po 5.0 thats in that TC and hers is 150hp/250ft/lb.

Its not the H.O. from the mustang unless its a Mark VII.

I believe the police package from those years was the HO 302 (5.0).

IMO, the 4.6l will prolly be more "refined" and get a bit better milage, but a properly maintained 302 will last forever, and is much, much easier to work on.

Good luck...

 

[edfcmc]

the early 4.6L modular motors were prone to have clogged EGR passages which would cause the engine to ping/knock at WOT and or at cruising speed.

You should be able to do a search for this and find a link to a TC website with detailed instructions how to clean.

+ I've found that the 4.6L motors have very expensive parts when compare to the 5.0l mustang.

Furthermore, there is a website called modular motors or something likethat which details all the differences between the 4.6L and the related (i forgot the displacement) bigger engines as well as the differences between the early 4.6 and later.

 

[Insane3D]

Also, some Crown Vic's from the late 80's to '91 came with the 351W, although those are more rare.

 

[Iron Woode]

Originally posted by: eldorado99
Now I'm after a early-mid 90s town car and I notice that the earlier ones (90-91 or 92) Have the 5.0L engines which I believe are straight out of the mustang. The later ones have the same 4.6L that is in the crown victorias today, what is the comparison?

The 5.0 L 302 (like I have in my Crown Vic) is not out of the mustang. The mustang engine is very different.

5.0L Fullszie: 150 hp 270 lbft torque
w/ dual exhaust: 160 hp 275 lbft torque

Mustang : 225 hp 285 lbft torque

If you want some serious HP then I would suggest and engine swap from a 5.0L Explorer. 290 HP.

 

[Ornery]

90-91 or 92 Have the 5.0L

Nothing wrong with either engine, other than being under powered, but go for the newer 4.6L Town Cars. There won't be much difference in initial price, but the MPG and performance will be better.

 

[eldorado99]

So if the 5.0L from a Town Car is different from a Mustang, are the parts still reasonably similar? As in, could I go to a junkyard and pull some parts from a 5.0L Mustang?

 

[Insane3D]

Originally posted by: eldorado99
So if the 5.0L from a Town Car is different from a Mustang, are the parts still reasonably similar? As in, could I go to a junkyard and pull some parts from a 5.0L Mustang?

Yeah, and you could just drop a HO 5.0L in there easily too.

 

[Black88GTA]

The 4.6 was prone to intake manifold failure. Not a cheap repair, once labor costs are factored in. Even if you do it yourself, the part alone is quite expensive.

The 5.0 is much easier to work on, parts are cheaper and more widely available, has a better aftermarket for upgrades, etc. Dollar for dollar, I would guess that you could probably tune the 5.0L to produce much more HP than the 4.6, since the 5.0 / 302 was the primary Mustang engine for many years (was replaced by the 4.6 as the V8 Mustang engine in 1996). The 4.6 is relatively new in comparison, and while upgrades are available, they are much pricier than the 5.0 parts, and not as prevalent.

 

[alkemyst]

Originally posted by: Black88GTA
The 4.6 was prone to intake manifold failure. Not a cheap repair, once labor costs are factored in. Even if you do it yourself, the part alone is quite expensive.

The 5.0 is much easier to work on, parts are cheaper and more widely available, has a better aftermarket for upgrades, etc. Dollar for dollar, I would guess that you could probably tune the 5.0L to produce much more HP than the 4.6, since the 5.0 / 302 was the primary Mustang engine for many years (was replaced by the 4.6 as the V8 Mustang engine in 1996). The 4.6 is relatively new in comparison, and while upgrades are available, they are much pricier than the 5.0 parts, and not as prevalent.

The part is $200, don't buy a factory ford manifold at $700. Took me 6 hours the first time, with about 2 hours trying to reach a nut I gave up on and found out it didn't have to be undone. Wasn't my car though, if I 'knew' it better I could have gone much faster.

The coolant passages crack on the originally design which was a 7 year silent recall....I think 98 was the last year that used it. The 95 Mustang had a full recall, Ford did a silent redesign (didn't fix the problem) for 96-98's....there is a manifold easily found on ebay that's the solution.