5.0 v 4.6

[HighRev87]

Originally Posted by silverstangs

I will be installing comp cams, I went with a mild set. I'm waiting till after Xmas to install them.

Will this be in a GT or a v6? If GT please give me details on what you paid, how hard the install was, and the car's response (once your done of course)

[zx2srdotnet]

look at the hp to tq ratio though too

5.0 averaged 75ft/lbs more
4.6 is only 42.5f/lbs tht hase a lot to do with it also

and the 300lbs the SN95 has over the fox body

[superpino]

1992 5.0L V8 HP 225@4200 Torque 300@3200 (technically 4.9L) Hey what would be the top speed on this mustang and is it a gt or a cobra?

[zx2srdotnet]

92 didnt have a cobra it would be a GT

[Muscletang]

Originally Posted by superpino

1992 5.0L V8 HP 225@4200 Torque 300@3200 (technically 4.9L) Hey what would be the top speed on this mustang and is it a gt or a cobra?

If you give them time on a good open stretch they can reach 150.

[eillob]

Well one thing is for sure, there are definately two different types of mustang guys. The're mod motor guys and the're pushrod guys. There is no doubt in my mind that the mod motor is a more refined more emissions friendly and a very smooth motor all around. Which has more torque? Well on paper it looks like the 4.6 After driving both my vote still goes to the 5.0

[silverstangs]

Originally Posted by HighRev87

Will this be in a GT or a v6? If GT please give me details on what you paid, how hard the install was, and the car's response (once your done of course)

This will be for a 03 GT. I went with the Xtreme Energy 102600/XE270AH cams which is right in middle of the three choices. I went in that direction because of my gearing,(3.55's) the amount of freeway driving, and I wanted half a chance at passing emmisions. The top cams listed IMO was not worth it, unless I was keeping the stock gears in back. Plus I can't see myself spending $730+ for little gain. I really wanted a cam that would hit 6200rpms, but what they offered didn't work too well below 2200rpms. I cruise at 2200rpms on the freeway, so that eliminated the 3rd cam.

I already had been in a few other GT's with those same cams, and I will vouch that you WILL definately hear and feel a big difference. It sounds so damn nice with magnaflows.

I paid about $1050 for the cams and springs, after taxes and shipping of course. I'm gonna do the work myself. I am actually attempting to get another get of PI heads and have them ported and polished. Then install the cams onto those, and then swap heads, if I don't install them onto a 5.1L shortblock.

[GTStang]

Originally Posted by eillob

Well one thing is for sure, there are definately two different types of mustang guys. The're mod motor guys and the're pushrod guys. There is no doubt in my mind that the mod motor is a more refined more emissions friendly and a very smooth motor all around. Which has more torque? Well on paper it looks like the 4.6 After driving both my vote still goes to the 5.0

And neither one really understands the pro's and cons of either motor.

[silverstangs]

Originally Posted by GTStang

And neither one really understands the pro's and cons of either motor.

I think some of us do that have owned both...
matter of fact, I think some of us have gone full circle.....

I've had the 2.3L 4 banger foxes, the 5.0L foxes, I have even dropped in a 351W into a fox, then I went to the 3.8L after I came back to the US, and now I got my GT....

I would really like to have a early fox, and stroke out a 302 to a 331 and use a procharger on top of that.......

[eillob]

Originally Posted by GTStang

And neither one really understands the pro's and cons of either motor.

Ain't that the truth.

[runningmole]

Originally Posted by zx2srdotnet

92 didnt have a cobra it would be a GT

Unless it's from Canada, then it's a Cobra

[InUrHead]

Originally Posted by ModMech

You don't hear of too many older vehicles with 300,000 miles plus on them (5.0), but it is COMMON with the 4.6L. So which is more durable? The 4.6L no contest.

Wow... some people never cease to amaze me...

1.) I've met only a handful of people who've put that many miles on a 4.6... No where near enough to call it common or determine that they hold up under those conditions.
2.) My last 5.0 had just rolled over 325K when I got rid of it, and it was still running beastly strong, almost flawless.
3.) To say that one is more durable that the other would assume that they're both completely stock, daily driven, and not abused... (find a mustang owner that can go 300,000 miles without modifying or floggin it at some point and win a freakin cookie) And I'm not ready to make that assumption of any mustang owner

[CochinoFilipino]

Unless you want to stay stock you should also consider the cost of mods.

[ModMech]

Originally Posted by InUrHead

Wow... some people never cease to amaze me...

1.) I've met only a handful of people who've put that many miles on a 4.6... No where near enough to call it common or determine that they hold up under those conditions.
2.) My last 5.0 had just rolled over 325K when I got rid of it, and it was still running beastly strong, almost flawless.
3.) To say that one is more durable that the other would assume that they're both completely stock, daily driven, and not abused... (find a mustang owner that can go 300,000 miles without modifying or floggin it at some point and win a freakin cookie) And I'm not ready to make that assumption of any mustang owner

How many 5.0s and 4.6s do you WORK ON, on a daily basis?

I can tell you all, that for SURE the Cab companies and Police Departments are absolutely THRILLED with the durability of the 4.6L, as are the fleet truck and van owners (like us). The fact of the matter is that they simply don't break, or wear out when properly maintained. All of the 4.6L engine failure that I have seen (a few out of literally thousands of units), were directly due to one of two things.

1) Using too heavy an oil in cold climates, causing the cam bearings to wear pre-maturely.
2) Failed rods/pistons from over-revving or power adders.

Of all our customers and self-owned units with the 5.0s and 4.6Ls, more than 50% are now 4.6L, and we have YET to tear heads off or replace any engines or components. The same cannot be said about the 5.0s that we see, a few have had valve problems, three engine repacements (under 150,000 as I recall) due to cracked pistons or excessive cylinder wear, and countless waterpumps and timing chains. Done ONE water pump on a 4.6L, and zero timing chains.

We are talking about apples to apples, similar service and useages and similar mileages.

I won't even get into the emissions issue, you simply CANNOT get a 5.0/5.8 to pass emissions standards for cars and LD trucks even in 1997, which is why they quit installing them in 1996 (the one tons got pushrid engines thru the end of the '97 MY).

[brentmcq]

I have always been a push rod fan until I started getting into Mod motors. They are very efficient motors that take nicely to mods and abuse. Both can be as beastly as your wallet can afford.