LS3 Engine Specs 2023

LS3 Engine Specs 2023

The LS3 is a 6.2L (376 cubic inches) tiny-block engine manufactured by General Motors. It is a preferred choice for applications that require performance because of its powerful horsepower and torque output, as well as being affordable and reliable. Here are the main specifications that are associated with the LS3 engine:

Engine TypeLS-Series Gen-IV Small-Block V-8
Displacement6.2L / 376 cu. in.
Bore x Stroke4.065 in. x 3.622 in.
Compression Ratio10.7:1
Fuel SystemElectronic Fuel Injection
Lubrication SystemPressurized Wet Sump
Ignition SystemDirect Ignition
Standard430 hp @ 5,900 rpm
Dual-Mode Exhaust436 hp @ 5,900 rpm
Standard424 lb-ft @ 4,600 rpm
Dual-Mode Exhaust428 lb-ft @ 4,600 rpm
Block MaterialCast-aluminum
Main Bearing CapsSix-bolt, cross-bolted
Cylinder HeadsAluminum, cathedral-port design, 2.125 in. intake / 1.590 in. exhaust valves
ValvetrainHydraulic lifters, roller rockers
Oil Capacity6 quarts
Cooling System Capacity16.8 quarts
Alternator160 amps
Starter Motor1.4 kW
WeightApproximately 595 lbs. (dry)


This article has provided you with an understanding of the LS3 engine’s capabilities and possibilities.

No matter if you’re a veteran gearhead or are a newbie to the world The LS3 is a stunning piece of technology that promises thrilling experiences and unlimited possibilities.

Thank you for coming along in this exploration of the specifications of the LS3! I hope that you find the details useful and interesting. 

For any concerns or want to talk about engines, don’t hesitate to comment below. Until next time, happy driving!