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1.
ls1
The most powerful engine there is. It is extremely underated, and can produce massive amounts of power.
people think the Earth spins because of gravitational forces....completely wrong......there is an LS1 in the core of the planet that is causing the spin....a few have been put in space to move the planets around the sun too
by Kwhit10 September 16, 2003
 
2.
LS1
A V8 built by General Motors. Ricers call it old-fashioned because it is a pushrod engine, however, they completely ignore the coil-per-cylinder distributorless ignition, plastic intake manifold, and aluminum block and cylinder head.
This engine was found in all Corvettes built from 1997 to 2001, and in all 2004 Pontiac GTOs.

It has evn higher performing variants, like the LS6 which features a more aggressive camshaft profile and higher flowing ports, the LS2 which displaces 6.0L and has displacement on demand, and the LS7 which is 7.0L in size and features CNC ported cylindr heads.
The LS1 is featured in many high performance vehicles by General Motors.
by Artificialist November 16, 2005
 
3.
Ls1
The Badass 345 Horespower engine in my car.
I just smoked ANOTHER Nissan 350Z with my Trans Am's LS1.
by Drax October 30, 2003
 
4.
LS1
A 3rd generation small block chevy sbc found under the hood of 1998 and up Camaro Z28's and SS's, Pontiac Firebird Formulas, Trans Am's, and GTO's up to 2004. This hairy beast of an engine is conservatively rated at 325 horsepower, when many cars see 315 at the wheels bone stock. It is 5.7 liters or 346.7 cubic inches displacement. 500+ horsepower is attainable without the use of forced induction.

Also, it is the sore spot to an ricer. Touted by said ricers as "old technology" because it has pushrods, the LS1 motor and its various LSX companions will continue to be the bane of many ricers' existence.

Common excuses made by those slain by the mighty LS1 include (but are not limited to):
-I (losing car) have better hp/liter
-I (losing car) get better gas mileage
-It's an unfair race because you (LS1 owner) have more displacement***
-It's to hot for turbos
-I'm running pump gas, so I can only run 10 psi.
-If I had C16 race gas, I'd kill you
-I had a boost leak.
-Blow off valve (BOV) is stuck.
-Clutch was slipping

***Note: I did not make you buy a car with a smaller engine, so don't bitch about it.
I thought my giant wing and primered body kit would be enough for the LS1. Boy, was I wrong.

I am a stupid ricer so I make fun of the LS1 for having pushrods even though it makes 3 times the power of my DOHC civic.

An LSX motor is like having King Kong under your hood, once you floor it, it goes ape shit.

God didn't rest on the 8th day, he simply sat and listened to a cammed LS1 with open headers idle all day.
by Jimbo98Z September 27, 2007
 
5.
Ls1
The LS1 was an evolution of the earlier LT small-block V8 but shares little other than similar displacement and external dimensions. It is an all-aluminum 5.7 L (5665 cc) pushrod engine and produces between 305 and 350 hp (228 to 261 kW) and 375 ft·lbf (508 N·m) of torque, depending on the application. Beginning in 2001, the LS1 received the higher-flowing intake from the LS6, and a smaller camshaft to keep power at the same level; this also allowed GM to remove the EGR system. The block is very similar to that of the higher-output LS6; beginning in 2002, some LS1 engines were actually built using the LS6 block instead. The LS1 was on the Ward's 10 Best Engines list for 1998.

Applications:

* 1997-2004 C5 Corvette base model
* 1998-2002 Chevrolet Camaro Z28, SS
* 1998-2002 Pontiac Firebird Formula and Trans-Am
* 2004 Pontiac GTO
* 1999-2005 Holden Commodore as an option
* 1999-2005 Holden Statesman/Caprice
* 2001-2005 Holden Monaro
The Trans Am's engine is an LS1.
by Wikiped April 17, 2006
 
6.
LS1
A GM motor that was used from 1997-2004. Was very underrated at the factory, and stock, had about 350-360hp.

The LS1 is an AMAZING motor, in that it takes to very slight modifications well, and if taken car of, lasts a VERY long time.

It has been known to make around 900-1000hp with forced induction, and a few supporting modifications.
Man, my car has an LS1 which is said by some to be superior to the LS2!
by Slash8915 February 12, 2009
 
7.
Ls1
Ellis Juan All da Wayyyyy Every LS1 Is blessed by the loving hands of allah,Oh Yeah, Kwit10 thanks, By they Way, I'm Cooked_Rice :) And Kwhit10,right that Russ is a Small penis Fat ass acned riceboi driving a Honda Civic Si,that people in Luminas(see Kyledykstra) and Stock Silverados beat them :P
Gawddammn the only flaw on a LS1 is the Sheetmetal
by Cooked_Rice September 17, 2003