LS1 Vs LT1

[D0cks]

Sorry guys i know this isnt 5.0 talk but to beat the enemy u gotta understand them! Whats the main differences of a ls1 vs a lt1, and what kinda power to they both put out stock, i hear a ls1 is 300 rwhp stock, what about a lt1? Which do u think has more potential, and if anyone has any dynos of stock ls1s and lt1s that would rule!

 

[bobbys9350]

dont know too much but i know the LS1 has more power and bite, and also responds better to mods. they say doing a cam in a LS1 is AMAZING

 

[5spd GT]

Ls1's can dyno anywhere from 285-310rwhp stock depending on tranny type and options from the factory. They can trap up to 110mph stock...

The lt1's dyno around 240rwhp and trap around 100mph or so...some as high as 102mph with the t56...

www.ls1.com has lots of info on them.

They both have great potential when you add heads/cam to them...they make great power. Just a cam swap on a otherwise stock ls1 can net you 35rwhp or so. That isn't the case on the 5.0L

The ls1 is a 346 cubic inch and the lt1 is a 350...both fall under the 5.7L category...

 

[91foxbodygt]

ls1 300 hp
lt1 275-285 hp
ls1's have more top end
lt1's have good launch
lt1 vs ls1 = ls1 wins

 

[1QK PNY]

LS1's will and can do almost 13's flat with no mods. lt1= more low end torque, and ls1 has more top end power and is better for drag racing.

General Specifications
Displacement 5.7L (5665cc, 346ci) Gross Horsepower 310 @ 5200 RPM, 320 @ 5800 RPM
Bore/Stroke 3.90/3.62 Gross Torque 340 @ 4000 RPM, 330 @ 4400 RPM
Compression Ratio
10.1:1 Maximum RPM
6200
Firing Order
1-8-7-2-6-5-4-3 Out of crate weight.
Approximately 390 lbs.
Spark Plug
ACDelco 12
ACDelco 41-985 Spark Plug Gap
.060”, 1.524 mm

Block Specifications
Block Material
319-T5 Aluminum Block Description
90° V, Deep skirt with cast-in iron sleeves.
Bore Spacing
4.40” Deck Height
9.24”
Main Bearings
5 Thurst Bearing
Center Bulkhead
Bearing Caps
4 vertical bolts, 2 cross bolts


Cylinder Head Specifications
Material
356-T6 Aluminum Description
Cross flow, wedge combustion chamber.
Ports
Symmetrical, intake and exhaust Chamber Volume
67.3 cc
Head Gasket
0.052” compressed


Crankshaft Specifications
Material
Cast Nodular Iron Features
Undercut and rolled fillets.
Crank Pin Diameter
2.10” Main Bearing Diameter
2.56”

Piston Specifications
Material
Cast Aluminum Description
Strutless, flat top.
Compression Ht.
1.34” Weight
15.5 oz.

Induction System
Manifold
One-piece composite. Throttle Body
75.0 mm bore dia.

all the info you need....and LS1 is better imo

 

[D0cks]

crazy, thanx a ton for the info guys, ls1.com had a dyno of a pretty much stock ls1. Crazy numbers!

 

[DarkMesa8]

LoL, this is a funny thread to find ontop of the 5.0L tech.

Regardless, I've seen LS1s that I know are stock in the 13's. I've also seen them fall into my rearview mirror with cruddy drivers or the dread 460LE, or both.

 

[GroverDill]

LS1 is a wicked motor.

damn GM!

 

[1QK PNY]

And on the other hand i know a buddy of mine who has a 97 Z28 with exhaust,gears that beat a 03 Evo 8....not that much of a kill but LT1's are no joke either.

 

[super302]

are they both pushrod engines??

 

[bluevenom867]

The LS1 is like the Ford Celveland of the early 70's,only with much more technology and a lot less wieght,and is made by GM.

 

[1QK PNY]

are they both pushrod engines??

i believe so, not 100% though

 

[bluevenom867]

Yes they are both pushrod engines.

 

[bluevenom867]

You also have to watch out for the GM 4.6 Northstar DOHC motors,there pretty nasty too with 320hp.

 

[88_GT_5_oh]

wish ford would have stuck with a the pushrod motor................ with those cars don't you have to drop the motor out under the car?

 

[Jekyl]

You also have to watch out for the GM 4.6 Northstar DOHC motors,there pretty nasty too with 320hp.

Im sure thats the engine in my neighbors cadillac STS Man i drove that car to the store once and holy **** it had some punch.

 

[bluevenom867]

Im sure thats the engine in my neighbors cadillac STS Man i drove that car to the store once and holy **** it had some punch.

I know,I got the same car .
I got a 96 STS with the 300hp motor,ran is at the track once (1/8),ran a 9.5-6 and I forget the mph.All I had was royal purple and cleaned air filter.

 

[Jekyl]

I know,I got the same car .
I got a 96 STS with the 300hp motor,ran is at the track once (1/8),ran a 9.5-6 and I forget the mph.All I had was royal purple and cleaned air filter.

Yeah same year as my neighbor. Pearl White i think the color is called. ALl i gotta say is that car has a great stance and look to it. If only they made it with a 5spd. I love the look of the dual exhaust on it too. Yeah I love the STS..fast with a S***load of luxury. Id love to see what a minorly modded STS would run in the 1/4 such as some weight reduction.

 

[Camman]

Yeah same year as my neighbor. Pearl White i think the color is called. ALl i gotta say is that car has a great stance and look to it. If only they made it with a 5spd. I love the look of the dual exhaust on it too. Yeah I love the STS..fast with a S***load of luxury. Id love to see what a minorly modded STS would run in the 1/4 such as some weight reduction.

Can you imagine how much weight you could take out of a caddy?

But then I guess that would kind of ruin the point to owning the caddy

 

[eec4tuner]

What about the ls-4 in the gto's?