Used in General Motors’ line of RMD cars and trucks, the LS series is a brand new design that’s intended as the only V-8 engine. Now, this spurs the question, What Does LS Mean In Engines? Some people would say, “I have been reading things about the LS series, but one thing I’ve not discovered yet is what exactly the LS means.” If you fall under such category, you’re the reason we have put up this article — to give the meaning of LS and other details about it.
What Does LS Mean In Engines?
Some depict the meaning of LS as “Luxury Sport,” but speaking in practical terms, it simply references the trim of the vehicle as being the “basic model.” The trim levels come in a pattern that ascends as follows: LS, LT (1LT, 2LT), LTZ, and SS.
GM is a company that does great in building a small-block V8. Well, they’ve been in the business of building such for a long period of time. The LS series sprung up in 1997, and it was regarded as the Gen III small block. First, they released one known as the LS1, then in 1999, the more powerful LS6 followed. The Gen IV LS2 was unveiled by GM in the year 2004. In order to achieve an improved ignition timing, it features a 58-tooth reluctor wheel, VVT, and AFM. After a short time, the LS4, LS7, and LS3 came into existence — YES, in the LS4, LS7, and LS3 order.
Afterward, the LS9 was introduced — a supercharged, advanced version of the 6.2-liter (376 cu in) LS3, and also, the LSA variant, a variant that got into the Cadillac CTS-V. Have we made mention of the LS engine horsepower? The numbers are 400 lb-ft and 400 hb, for the stock LS2. You should also be aware of the fact that a stock LS9, in its way, churns out 604 lb-ft and 638 hp of torque.
What Makes The LS Engines So Great?
The LS engine was initially manufactured by the Auto company, GM. A lot of persons can testify how much impact the LS engine has in the market — one could comfortably say: “the LS engine has taken the V8 market by storm.” Let’s look at the Ford Modular unit, it’s pretty handy — but the effectiveness of the LS engine outperforms it, as well as a few JDM engines, seriously capable JDM engines, to boot.
The level of how the LS engine has dominated the real-wheel drive Chevrolet backlog can’t be overemphasized. Interestingly, almost all vehicles — from Mazda MX-5s to Porsche 911s — have now swapped their engine with this LS engine. In addition, there are so many advantages (reliability, value, power, etc.) attached to the LS engine, and it’s pretty difficult to return to other engines after giving this one a try.
It’s Ridiculously Strong
Owing to the fantastic engineering proficiency of the workers at GM, numerous persons have known LS motors for their efficiency in pushing almost 1000bhp on stock intervals. They were aware of how a strong engine block will greatly contribute to the production of a great engine. It creates that foundation needed to produce a high but reliable power output.
Furthermore, the LS1 — in the LS series — was designed specifically as a Y-block engine: this means that the V8 is impact and nice, causing an increase in its overall strength and rigidity, compared to the other V-engines — the ones that do more of splaying outwards. Also, Chevy went ahead to design a rigid head, and speaking further of what it designed, Chevy — as well — designed the engine block in such a way that it’s capable of taking Uber long head bolts that dive way down, right into the block. This helps in securing the entire engine sandwich together and decreasing any form of cylinder distortion while evenly distributing head torque.
It Breathes Extremely Well
Because of the head design, the extremely efficient head design, the LS motor CFM similar to that of the late 90s’ NASCAR engines. Engines are large air pumps when they’re in their basic form. Note that, the more the air penetration at speed, the more the production of power. By making use of the state of the art CFD software — computational fluid dynamics — the GM’s engineers possessed the ability to change head geometry in order to maximize the airflow’s efficiency.
This helps to increase torque and as a result, leads to an increase in power production.
They’re Cheap As Well
In America, every single scrap yard will come with an LS somewhere therein, putting into consideration the volume of vehicles that have used the powerhouse’s iterations. In terms of affordability, an LS is much likely to fit into any budget — any project car budget. It ranges from $2,000 to $4,000.
There Is A Wide Variety Of Options To Choose From
The range of engines — from 4.8-liter engines to the almighty aftermarket 7.4-liter LSX — can be gotten for an extremely affordable price. The LS1 is an option that stands as the cheapest option for many. The LS3s start from $5000 and as for the LSX, its unit goes for a minimum of nearly $10,000.
The Aftermarket Is Booming And Parts Are Plentiful
Owing to the level of the engine’s popularity, the full LS swap kits are, on the aftermarket, readily available. These kits do the job of supplying engine mounts, manifolds, and other ancillaries to ensure that the engine swaps. Also, it’s good you know that supercharging and turbocharging are popular mods used to enhance the ability of an LS. In addition, the 4.8-liter engines serve as a suitable platform to handle serious levels of boost pressure.
They’re Surprisingly Light
You’d see LS engine blocks made of either cast iron or aluminium. The aluminium variant is, very much, light for a V8. An aluminium LS1 is not too far from a cast iron 4-cylinder engine: this means that the least weight penalty is massively outdone as a result of the doubling of power output. (It could be more than the “doubling”)
The pushrod design, with its center of gravity, has its way of helping any welding car. It performs this task without any need for a large valvetrain’s weight resting high up in the geometry of the engine. The likelihood of overhead cam being more efficient and producing is on the high side, but the downside is: the weight and C.O.G penalty can turn out to be very high, in terms of downplaying pushrods.
They Can Last Very Well Over 150,000 Miles
One of the features of these engines is, they’re bulletproof. Their being bulletproof is because of their simplicity and the robustness of the mechanical engineering within the block. With the help of regular and decent servicing, an LS block has the ability to last for between 200,000 – 300,000 miles.
Strengths Of The LS Engines
From the high-flow heads to the low-down torques, LS Engines have numerous incredible features.
Below are four reasons why going for LS engines is a great choice:
- Pushrods: The work of the pushrods in the engine positively affects the overall engine. Not making use of overhead cams — to an extent — reduces the total height. And just so you know, that’s the reason why the LS is more compact than many other smaller engines.
- Aluminium Casting: Aluminium is amazingly strong for its weight, and that leads to lightweight heads and block. This stands as another reason LS engines are used in quite a good number of vehicles, from classic Camaros to Miatas.
- 6-bolt Main Bearing Caps: 4 bolts get inserted vertically and two horizontally. When they go in, in that manner, they produce a rigid bottom end. That ensures that the LS handle big is increased in output.
- Generous Cam-To-Crank Spacing: This creates room for a longer throw crank. The result of this is a greater swept volume which ends up producing power and torque.
To add to these four, the LS engine is lightweight, compact, and also very strong.
Frequently Asked Questions (FAQs)
Why Are LS Engines So Good?
The family of the LS engines is well-known for having quite smaller proportions than the engines of its competitors, making it a lot easier for a swap to be carried out — a swap into cars with small engine bays. With an overhead cam, you can achieve better economy and performance — but it’d be at the cost of a much heavier and larger engine.
What Is The Difference Between LS Engines?
The LS Engines have about 2 completely different generations — they are: the Gen III and Gen IV. The abbreviation LSX is just a term used to describe Chevrolet’s performance. LS Engines use electronic fuel injection. New Gen V LT engines now have direct injection.
What Does LS Mean In Engines – Conclusion
We’ve been able to give a response to your question — What Does LS Mean In Engines? — and to recap, here’s our brief response before we went into further details:
Some depict the meaning of LS as “Luxury Sport,” but speaking in practical terms, it simply references the trim of the vehicle as being the “basic model.” The trim levels come in a pattern that ascends as follows: LS, LT (1LT, 2LT), LTZ and SS.
Thanks for reading.
Joe lives and breathes cars and trucks. After many years working in the Auto industry, he decided that it is only right to share his knowledge with the public. As a qualified expert in trucks and cars, he started working for Truckile.com and is the main editor and publisher.