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Honest question, what is the "X"

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Old 10-07-2016, 12:39 PM
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Default Honest question, what is the "X"

I've been surfing around this forum finding all kinds of great information, and I was just wondering, what is the "X" in LSX? Is it just a generic LS designation for hopped up LS's? Sorry if it's a stupid question, just wondering.
Old 10-07-2016, 12:41 PM
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Technically the LSX is a GM performance crate motor. 427 or 454ci, can't remember. In the LS world people just use it to refer to any LS based engine.
Old 10-07-2016, 12:46 PM
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Originally Posted by bigdaddy350
Technically the LSX is a GM performance crate motor. 427 or 454ci, can't remember. In the LS world people just use it to refer to any LS based engine.
I vaguely remember the 427 or 454 LSX crate motor, but I figured there had to be more to it because there's no way everyone on here is running a $12K crate LSX.
Old 10-07-2016, 12:47 PM
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Its a variable. LSx. x= 1, or 2, or 3. etc.
Some people will claim that it doesn't mean that and that the LSX made people call all LS engines an LSX.

The problem with that logic, the F.A.S.T. intakes have had LSX on the top of them for 5 years before the GM aftermarket block was released.
Old 10-07-2016, 01:37 PM
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Better question; what does the 'LS' stand for?
Old 10-07-2016, 01:42 PM
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'Lotta Stank
Old 10-07-2016, 06:54 PM
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Better question, what does SBE stand for. I've seen others on the web refer to LS engines as an SBE, but I don't know what the acronym stands for.
Old 10-07-2016, 07:34 PM
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Originally Posted by dell72
Better question, what does SBE stand for. I've seen others on the web refer to LS engines as an SBE, but I don't know what the acronym stands for.
Stock Bottom End.
And I agree with post #2
Old 10-08-2016, 04:41 AM
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I thought SBE was Small Block Engine so not to be confused with SBC Small Block Chevy ?

LOL
Old 10-08-2016, 06:30 AM
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Yea, these topics always surface up for newer guys. Some hate the LSX term. Some hate the 4.8/5.3/Lq4/9 etc being called a LS engine because they are not designated LS1/2/3/5/7/9.
Old 10-09-2016, 03:46 PM
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If you ever take a woman for a ride in an LS powered car you will know what the X is for



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