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4.6L vs LS1/LT1

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Old 05-03-2005, 12:44 PM   #1
shag5150
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Default 4.6L vs LS1/LT1

I was just wondering...........Are there any advantages to having a 4.6L over an LS1/LT1 or vise-versa? What are the good points and bad points of each? What are the major differences? I mean, I know that the LS1/LT1s are bigger and faster, but are they BETTER than the 4.6L as far as reliability? Let's just say a person was interested in buying a sports car like a Mustang or Camaro and looks didn't matter. Lets say they wanted to know which of the two would be the better overall vehicle. Thanks!!!!
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Old 05-03-2005, 01:14 PM   #2
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Default RE: 4.6L vs LS1/LT1

Just my opinion...But I think the F-Bodies don't seem to hold up as well as the Mustangs. There is no doubt the LS1 is a monster of a motor and does very well with intake and cam when compared to a 2V GT. However the DOHC FI '03-'04 Cobra motor is another story.
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Old 05-03-2005, 01:23 PM   #3
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Default RE: 4.6L vs LS1/LT1

I happen to agree. The OHC 4.6s should last longer without too many problems.

However, The LS1 is a monster (and it's 1.1 liters bigger) and I have had plenty of chebby motors and the never die.

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Old 05-03-2005, 01:29 PM   #4
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Default RE: 4.6L vs LS1/LT1

We all know the F-body will leave a Mustang miles behind them in the twisties.

We all know the LS1 is a badass motor that responds to mods like it's possessed.

When it comes down to reliability, it's not the motors that is the problem. GM cuts EVERY CORNER possible with the production of the F-body. They have rear ends that tend to break from launching lightly from even idle, while some guys can do 4k launches and not break anything. It is well known within the GM community that about 80,000 miles is the point of no return for a F-body. You'll need several grand to keep the car in good shape. They have VERY heavy doors, which like to sag with age, some also come equipped with T-tops and they are notorious for leaking. Things like Opti-Spark are also tricky things for your mechanic who figures out whats wrong by trouble codes only.

When it comes to reliability, the Mustang is leaps and bounds ahead of the F-body. Also, a SOHC/DOHC engine generally produces LESS stress on any given part than a push-rod motor, but there are a lot more parts that can break.

So a 4.6 will be cheaper to maintain, while it'll be harder and more expensive to modify and get you less HP results when it comes to modifications.
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Old 05-03-2005, 04:32 PM   #5
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Default RE: 4.6L vs LS1/LT1

dude ford is cheap too. thats why all the ford interiors look like ****. cuz if they can save one dollar on each f-150 they cut costs by like 3 million so they same about 100-200 per ford and save like 600 extra large
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Old 05-03-2005, 04:36 PM   #6
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Default RE: 4.6L vs LS1/LT1

My old LT1 had 100k on it....it still ran like a raped ape. The interior was holding up fine, the doors were fine, the t-tops were fine. Window motor did go out, and the headlight grinded. I tell you though, my LS1 seems leaps and bounds nicer than my LT1 did. In every aspect. I've had 0 problems with my LS1 and it's pushing 83k miles. And trust me, it gets abused.

I have a lot of friends with both f-bodies and Mustangs. I've seen far more motor problems from Mustangs and far more cosmetic problems from f-bodies.
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Old 05-03-2005, 05:24 PM   #7
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Default RE: 4.6L vs LS1/LT1

I kept breaking the rearend on my f-bodies and there were always problems but my mustang is a rattling POS too. Welcome to North America
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Old 05-03-2005, 05:27 PM   #8
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Default RE: 4.6L vs LS1/LT1

Last time I dyno'd the car I was putting down 401rwtq on a 75 shot and I still haven't broke the rearend....*knocks on wood*
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Old 05-03-2005, 06:05 PM   #9
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Default RE: 4.6L vs LS1/LT1

Well a 99+ GT will run real even with an LT1 as far as performance.

I have ran dead even with several Z28 LT1's. Now my friends LS1 is another story. I have so much respect for that car after one ride in it.
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Old 05-03-2005, 06:12 PM   #10
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Default RE: 4.6L vs LS1/LT1

Well LS1's are very sneaky cars...You could see one driving down the street and blow the doors off of that stock LS1 in your modded stang....And you can also try to do the same thing to, what you thought was also a stock LS1 and he will pull like 10 cars on you. You cant always tell with those bastards...SAME WITH THE 03-04 COBRA'S
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Old 05-03-2005, 06:34 PM   #11
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Default RE: 4.6L vs LS1/LT1

yea 4.6 vs lt1 ive heard is a drivers race...well the 99-04 4.6's anyways

no stock mustang yet has touched an ls1 cept for the 03-04 cobra....its sad but even the 05 cant beat a stock LS1[:@]
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Old 05-03-2005, 07:42 PM   #12
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Default RE: 4.6L vs LS1/LT1

Huh? Mach 1's will run door to door with an F-body LS1.
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Old 05-03-2005, 10:06 PM   #13
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Default RE: 4.6L vs LS1/LT1

get a C4 ZR1 i believe that is a DOHC motor and absolutly hauls ***
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Old 05-03-2005, 10:12 PM   #14
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Default RE: 4.6L vs LS1/LT1


Quote:
ORIGINAL: tightdogal

yea 4.6 vs lt1 ive heard is a drivers race...well the 99-04 4.6's anyways

no stock mustang yet has touched an ls1 cept for the 03-04 cobra....its sad but even the 05 cant beat a stock LS1[:@]

99+ GT vs LT1=drivers race. I must have just been against some bad LT1 drivers.
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Old 05-03-2005, 11:02 PM   #15
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Default RE: 4.6L vs LS1/LT1

Quote:
ORIGINAL: LuvBottles97GT

Well LS1's are very sneaky cars...You could see one driving down the street and blow the doors off of that stock LS1 in your modded stang....And you can also try to do the same thing to, what you thought was also a stock LS1 and he will pull like 10 cars on you. You cant always tell with those bastards...SAME WITH THE 03-04 COBRA'S
you mean same with the fox bodies. them buggers are wildcards. they're either stock and driven by an old person, or they're modded to hell running 10s-11s.
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Old 05-05-2005, 03:30 PM   #16
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Default RE: 4.6L vs LS1/LT1

I still have my 1995 Z and let me tell you that the LT-1 is bullet proof and an awesome motor! The 4.6 will probally last longer due to the fact that it is an overhead cam motor. Thery are all good motors.
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Old 05-21-2005, 06:45 PM   #17
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Default RE: 4.6L vs LS1/LT1

No, I have a 2001 GT Girlfriends car, and my SS. Heads and a cam it made 449 rwhp with old cam. Have yet to loose to a cobra, mach1 and a 550hp WHATEVER lightining. The 4.6 N/A is ok, but I had 79k before I put my mods on. Now its insane. Never a problem, except pwr window motors. Stock even air filter it did 2.6 60ft 13.4 at 105.9. I ran it that one time. 2.6 60ft and still 13.4 at 105. LS1 is very, very strong. Good luck. There is always someone faster! LS1 is the B E S T foundation to start modding, except 03/04 Cobra and only b/c its equiped with the s/c already, if you had to buy a s/c I would say no-way. Now I have 93K, 550+hp and not one single motor trans problem. Watch out for the rear when you put slicks on with a 4:10 gear.
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Old 05-21-2005, 07:20 PM   #18
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Default RE: 4.6L vs LS1/LT1


Quote:
ORIGINAL: JayplaySS

No, I have a 2001 GT Girlfriends car, and my SS. Heads and a cam it made 449 rwhp with old cam. Have yet to loose to a cobra, mach1 and a 550hp WHATEVER lightining. The 4.6 N/A is ok, but I had 79k before I put my mods on. Now its insane. Never a problem, except pwr window motors. Stock even air filter it did 2.6 60ft 13.4 at 105.9. I ran it that one time. 2.6 60ft and still 13.4 at 105. LS1 is very, very strong. Good luck. There is always someone faster! LS1 is the B E S T foundation to start modding, except 03/04 Cobra and only b/c its equiped with the s/c already, if you had to buy a s/c I would say no-way. Now I have 93K, 550+hp and not one single motor trans problem. Watch out for the rear when you put slicks on with a 4:10 gear.
You've never raced a modded 03/04 cobra.
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Old 05-21-2005, 07:24 PM   #19
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Default RE: 4.6L vs LS1/LT1

They're all different engines. You can't compare them. They 4.6 and LT1 are about the same stock but the LT1 is a better choice because of going rate right now. The LS1 is great foundation but remember that you quickly outgrow the rest of the drive train. It depends on the goals you have. If you're looking for a car that is a great price and cheap and easy to mod then look for a 03/04 cobra.
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Old 05-21-2005, 07:47 PM   #20
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Default RE: 4.6L vs LS1/LT1

i think the ford duratec 2.5L in the svt contour is a much better engine.
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Old 05-21-2005, 07:47 PM
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