is the LS3 engine considered to be a LSx engine?

mikeSS · 12-06-2011, 01:48 PM

simple question i am confused.

i have been on other forums and they sometime say "LSx swap" and mostly its a LS1.

it is proper to call the LS family "LSx"? i know GM has a crate engine called LSX. thats why i sometimes just say LS engines.

LOWDOWN · 12-06-2011, 01:53 PM

Wikipedia is your friend:

http://en.wikipedia.org/wiki/GM_LS_engine

The Stig · 12-06-2011, 01:54 PM

different engines

*DGthe3* · 12-06-2011, 03:18 PM

I'd say that the LS3 is an LSx, but its not an LSX. Since this minor little difference can be very confusing ... I just call them Gen IV small blocks, since not all such engines have an LS designation (L99, L76, etc), and there are some Gen III's that have an LSx name (LS1, LS6)

matt55 · 12-07-2011, 11:39 AM

LS3 = LSx is the same as 52,387 miles = 52,xxx miles..

The Stig · 12-07-2011, 11:46 AM

Quote:

Originally Posted by matt55

LS3 = LSx is the same as 52,387 miles = 52,xxx miles..

Not exactly. There is an engine called LSX

Marc 85Z28 · 12-07-2011, 11:58 AM

The LSX is a crate engine from GM.

An LSx is any engine from the GM LS family, and sometimes any Gen III/IV GM V8. The lower case "x" is being used as a variable. It could be 1, 2, 3, 4, 6, etc

*DGthe3* · 12-07-2011, 12:49 PM

Quote:

Originally Posted by stieger

Not exactly. There is an engine called LSX

There is a difference in meaning between an LSX and an LSx. Uppercase is for the blocks and engines that you get from GMPP, which are essentially iron block LS engines. Lowercase signifies that it is a generic LS series engine.

In effect, every LSX is an LSx. But not every LSx is an LSX

GEEo · 12-07-2011, 12:57 PM

Different engines. Theres an LSx 376 thats simillar to the LS3, but there two different engines.

One of the difference is the Block and the Heads. (I think not a 100% on that)

SC2150 · 12-07-2011, 01:02 PM

LS based engines from 1997-2004 are GenIII and 2005 and up are GenIV. The LSX is a GM Performance Products block.

12-06-2011, 01:48 PM	#1
mikeSS Drives: 2015 c7 Join Date: Nov 2009 Location: MI Posts: 7,462	is the LS3 engine considered to be a LSx engine? simple question i am confused. i have been on other forums and they sometime say "LSx swap" and mostly its a LS1. it is proper to call the LS family "LSx"? i know GM has a crate engine called LSX. thats why i sometimes just say LS engines.

12-06-2011, 01:54 PM	#3
The Stig knows 2 facts about ducks Drives: ...and they're both wrong Join Date: Aug 2009 Location: The HMS Invincible Posts: 25,072 View My Garage	different engines __________________

12-06-2011, 03:18 PM	#4
DGthe3 Moderator.ca Drives: 05 Grand Am GT Join Date: Jul 2007 Location: Niagara, Canada Posts: 25,366	I'd say that the LS3 is an LSx, but its not an LSX. Since this minor little difference can be very confusing ... I just call them Gen IV small blocks, since not all such engines have an LS designation (L99, L76, etc), and there are some Gen III's that have an LSx name (LS1, LS6) __________________ Note, if I've gotten any facts wrong in the above, just ignore any points I made with them __________________ Originally Posted by FbodFather My sister's dentist's brother's cousin's housekeeper's dog-breeder's nephew sells coffee filters to the company that provides coffee to General Motors...... ........and HE WOULD KNOW!!!! __________________ Camaro Fest sub-forum

12-07-2011, 11:39 AM	#5
matt55 Drives: CTS-V Join Date: Aug 2008 Location: Raleigh NC Posts: 1,069	LS3 = LSx is the same as 52,387 miles = 52,xxx miles.. __________________ 10.8@130.8 610 whp, CAI, 2.5, E85, id850 on street tires.

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12-06-2011, 01:53 PM	#2
LOWDOWN Downright Upright Drives: Daily Join Date: Apr 2009 Location: Cruisin'... Posts: 4,145	Wikipedia is your friend: http://en.wikipedia.org/wiki/GM_LS_engine

12-07-2011, 11:58 AM	#7
Marc 85Z28 Drives: 1985 Z28; 2000 TA Join Date: Jul 2010 Location: MD Posts: 8	The LSX is a crate engine from GM. An LSx is any engine from the GM LS family, and sometimes any Gen III/IV GM V8. The lower case "x" is being used as a variable. It could be 1, 2, 3, 4, 6, etc

12-07-2011, 12:57 PM	#9
GEEo OKCamaros Drives: 4 banger Diesel Join Date: Mar 2010 Location: Philippines Posts: 4,572	Different engines. Theres an LSx 376 thats simillar to the LS3, but there two different engines. One of the difference is the Block and the Heads. (I think not a 100% on that)

12-07-2011, 01:02 PM	#10
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	LS based engines from 1997-2004 are GenIII and 2005 and up are GenIV. The LSX is a GM Performance Products block.