LT vs. LS: A Comprehensive Comparison
The world of General Motors' (GM) engines is a treasure trove for automotive enthusiasts, with two of the most revered families being the LT and LS. No wonder there - after all, both have earned their stripes in the performance and reliability arenas, and did so many times over.
Yet, the question on the mind of every gearhead in Orange County, CA is: Which one is better? Today, we'll do an in-depth comparison of both GM powerhouses, weighing their strengths and weaknesses to help you decide whether you should do a muscle car LS swap or go for the LT.
Which is better, LT or LS?
To get one thing straight right off the bat: both LS and LT are phenomenal. Both offer insane performance and a host of other benefits, so whether you opt for the cutting-edge LT or the venerable LS, you’ll be making the right choice. With that being said, let’s familiarize ourselves with each engine family and what it brings to the table.
LT Engines: The New Kid on the Block
Introduced in 2014, the LT engine family is GM's latest generation of small-block V8s. Designed with modern efficiency and performance in mind, LT engines boast:
Direct Fuel Injection (DFI) & Continuous Variable Valve Timing (CVVT), enhancing both the power output and fuel economy.
Lightweight construction, consisting of aluminum blocks and heads, contributes to improved power-to-weight ratios.
Advanced engine management enables refined performance and diagnostics, thanks to the integration of state-of-the-art ECMs.
Notable LT Engines:
LT1 (Gen 5, 2014+): Found in the C7 Corvette Stingray, producing up to 460 HP.
LT4 (Gen 5, 2015+): Powers the C7 Corvette Z06, boasting 650 HP (with the aid of a supercharger).
LT5 (Gen 5, 2019+): The demon within the C7 Corvette ZR1, capable of unleashing an ungodly 755 HP.
LS Engines: The Proven Veterans
Making its debut almost three decades ago in 1997, the LS engine family has become a veritable legend among car modification enthusiasts for many reasons, including:
Simplistic yet robust design makes LS a crowd’s favorite for swaps and modifications.
Wide performance range, from the humble LS1 to the beastly LS9, there's an LS for everyone’s need and want.
Unparalleled aftermarket support, both in terms of availability and variety of performance parts.
Notable LS Engines:
LS1 (Gen III, 1997-2004): The OG of the LS world, found in the C5 Corvette, boasting a humble but respectable 405 HP.
LS7 (Gen IV, 2006-2013): The C6 Corvette Z06's powerhouse, naturally turbocharged to 505 HP.
LS9 (Gen IV, 2009-2013): Supercharged and found in the C6 Corvette ZR1, easily capable of producing up to 638 HP.
LT vs. LS: A Head-to-Head Comparison
Now, it’s time to see how LT and LS fare “against” each other, based on their characteristics:
Technology:
LT Engines: More Advanced (DFI, CVVT) but, also, more complex;
LS Engines: Proven performance and lower complexity;
Power output potential:
LT Engines: Higher (755 HP in LT5);
LS Engines: Highly Modifiable, up to 1,000+ HP with ease;
Weight:
LT Engines: Lighter, due to aluminum blocks/head;
LS Engines: Heavier (especially earlier models), due to iron blocks;
Aftermarket support:
LT Engines: Growing, but not as vast;
LS Engines: Unrivaled in the GM community;
The Verdict
As you can see from everything mentioned above, both engine families have a lot to offer. Therefore, the final choice will ultimately hinge on your specific needs, preferences, and project goals.
If you are a person who prioritizes modern technology and efficiency, you’re looking for a more straightforward, OEM-style installation, or simply want the latest in engine management and design - then LT is probably the better option.
However, if you prefer a more traditional and simple engine design with virtually unlimited aftermarket support and potential for modification, as well as a much wider range of price options (including budget ones) - then you can’t go wrong with LS.
Which garage can reliably do a muscle car LS swap near me in Orange County, CA?
Chimera Motors is one of the very few places in Orange County that can do an LS engine swap without too much difficulty. The reason? We have extensive experience in classic/muscle car restoration, repair, and modernization, and our capabilities are further increased through state-of-the-art equipment and methodologies. Get in touch with us today and you’ll be driving your LS-powered beast down Pacific Coast Highway in no time!
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