SIKHS 5

So for months now whenever I call a LQ4 or LQ9 engine a "LS" my brother(on ls1tech) corrects me and says that these engines arnt LS engines. He legitimately thinks that LQ engines arnt LS engines, saying that GM wouldn't have used a Q instead of a S if they were.

Anyone else want to chime in on this?

(I have an LQ4 in my '65 Chevelle[4-Door], should I stop telling people I have a "LS Swap"?)

itsslow98

iTrader: (18)

Its an LS style motor, but every LS block is aluminum. Every LQ has an iron block. Call it whatever the hell you want but IMO its not an LSX swap.

parks450

iTrader: (17)

Haha gotta love thick headed people. The design is based off a ls1 engine, thats wht people refer to the as ls motors, ls swap, etc. Technically its a gen 3 motor I think. Someone correct me if im wrong?

parks450

iTrader: (17)

I believe they are LSX motors. LSX isnt a particular motor. Its a way to summarize all the ls/gen 3 motors since their all based on the same design. So it is a LSX related swap.

93Z2871805

iTrader: (5)

LS is just the common name everyone uses when they refer to Gen III/IV small blocks. The LQ4/9 uses the same architecture as the LS1, just made of cast iron. It would be like saying the ZL1 wasn't a BBC because it didn't use the commonly used "L" for it's RPO designation like the others (L72, L88, LS6, LS7, etc).

metalmilitia606

iTrader: (8)

I get this a lot too. My friend tried telling me that LSX is race only. I'm like dude, it's just a generic term for all the ls motors. I know that the C5R's had something called LSX in them I think. The LQ motors are just iron block LS motors so they are pretty much the same. They come from the same gene pool ha ha.

RPM WS6

iTrader: (3)

I don't think there is anything official on this, but I would consider them to all be "LS" engines, because they were all directly based on the original LS1. I guess the most accurate thing to call them all would be Gen III/IV SBC, depending on the engine.

BOBS99SS

iTrader: (2)

^agree

DarkFox118

iTrader: (7)

I consider all gen III GM v8s, where parts are almost fully interchangeable, as part of the same family. "LS" may be an oversimplification, but I don't think it needs "correcting."

When you order parts for your LQ you can tell the guy you need heads for an LS1.. he won't know/care that there's a difference in 99% of the parts.

Ask your brother why it is so many people put 5.3L heads on their Ls1? Ask him what constituties an "ls" motor. What if you change the components? Is it still an Ls?

The only thing I'm picky about is "lq4" and "lq9." The reason I stress over it is when someone says 600WHP LQ4! and then you go to the thread and they say "step 1: put in a rotating assembly with flat top pistons" it's like apples to oranges from then on. The "lq4" is differentiated from the Lq9 BECAUSE of the dished pistons, and if you take that away.. well then it's not an "lq4" anymore imo.

there's a guy ridin around my area that daily drives a late 60s firebird. His tag is "ls1T56." He has HIDs in it, and it seems to run pretty good. I saw a picture of it at autozone behind the customer rides section and asked the guy. He told me "he's got onna them iron 6.0s in it." So.. if it's good enough for his tag.. it's good enough for me.

JaYZeig

iTrader: (11)

i guess this argument can go both ways, yes its build is based from the ol ls1 days, but it being an iron block totally throws off the whole concept.

SIKHS 5

why would you say the material used would throw off the design of the engine?

blk/slvr02ss

iTrader: (21)

I Say its still a LS Based engine but i would also say its a LSX conversion !!

KenrickCustom

iTrader: (3)

What i hate is when my cousin bought his 05 silverado 2500hd and told everyone when he showed it to them that is has the corvette motor in it because it was a 6.0 and the
ls2 had just come out in the vettes. He did the same thing this summer with his 09 yukon denali cause it has the 6.2 and the vette has the ls3. It annoys me so much when ever he's talking about it.

I agree that they are all LSX platform engines, GM calles their iron block racing engine the LSX and their aluminum block engines LS on GMperformanceparts.com

IRONFIST

Cool to see another Sikh into this stuff.. I used to think I was the only one.
I'm pretty sure most people refer to the iron engines as LSX and the aluminum ones as LS1-9.
LQ4 build up = LSX for sure.

thunderstruck507

iTrader: (18)

They are "ls" based engines so I don't have an issue with that.

But when someone says "iron ls1" or specifically says "ls1 parts" and then you find out its iron block stuff it pisses me off. An ls1 is an aluminum 5.7 liter (or more if stroked)...it is not a 4.8/5.3/6.0 iron block truck motor.

JaYZeig

iTrader: (11)

not the design of the engine, BUT an "ls" engine is an aluminum block "lq" is the iron blocks..TECHNICALLY its not an ls engine so why refer to it as that?

HVYMTL

I have a feeling a bunch of guys are gonna want "LQX" merchandise now... The way I see it is, if the only difference is iron vs aluminum, yet the blocks are identically designed (based off of the original LS1) then I can see it being totally fine to refer to them all as LS based engines.

DarkFox118

iTrader: (7)

just tell people you put a truck motor in it. They'll think less of it, even if it's making far more power than a stock Ls.

SOMbitch

iTrader: (8)

Some of you guys are getting it a little confused. Around her any Gen III/IV motor is an LSx no matter iron/aluminum. An LSX is any motor built off the badass GM LSX iron block...


More specifically the LQ blocks are LS design engines just iron as already stated so yes it is an LS around here....

SIKHS 5

there's a bunch for Sikh guys out here in nor cal with LSx vehicles(mainly corvettes) running around, even more Sikh guys out here are running Whippled or Pullied/Ported Bolt-On '03-'04 Cobras

us old school guys are rare, one of my cousins has 67 caprice and a another has a show quality resto. '64 impala

my brothers just got a 01 camaro ss with a procharger, moser 9", monster stg.3, and just the usual bolt ons