LS2 Engine
The Holden LS2 is a 6.0-liter V8 engine, part of the GM LS engine family, used in some Holden and HSV (Holden Special Vehicles) models, particularly in the Commodore and its variants like the Clubsport and GTS. The LS2 is known for its 6.0L displacement, 4.00 inch bore, and 3.622 inch stroke. It was an upgrade from the 5.7L LS1 and was used in various vehicles like the Corvette, Cadillac CTS-V, and Chevrolet Trailblazer SS.
Engine Specs and Features:
Displacement: 6.0 liters (364 cubic inches)
Bore: 4.00 inches (101.6mm)
Stroke: 3.622 inches (92mm)
Cylinder Heads: Initially used cathedral-port heads (243 casting), later versions used rectangular-port heads.
Power Output: Varies depending on application, but generally around 400 horsepower (300kW) in Corvette-spec and slightly more in HSV models.
Torque: In HSV models, the LS2 produced 550Nm of torque.
Compression Ratio: 10.9:1
Block Material: Aluminium
Valvetrain: Overhead valve (OHV) with pushrods
Intake Manifold: Often features a 'cathedral port' design, which can be a bottleneck for airflow compared to later rectangular-port heads.
Ignition: Features individual coil-on-plug ignition coils.
Notable Applications: HSV Clubsport R8, HSV GTS, Holden Commodore (VZ and early VE), Cadillac CTS-V, Chevrolet Trailblazer SS.
