The cylinders are shut down thanks to a special set of hydraulic lifters. This technology allows four cylinders to be shut down by the ECU during cruise situations to improve fuel economy. The L76 engine retains the 6.0-litre capacity and adds displacement on demand (DOD), which is also known as active fuel management (AFM). The L76 is a variation of the LS2 made specifically for Holden Australia’s requirements. For those new to the LS family, though, the wide range of variants can seem confusing, so here’s the low-down. With huge support from aftermarket manufacturers as well as factory support from GM itself, buying, modifying, and tuning an LS V8 really is almost too easy. The basic strength has been one of the reasons why the LS has been so popular with enthusiasts, easily supporting the addition of superchargers or turbos. The basic design of the LS V8 includes a strong and reliable alloy block with race-inspired six-bolt main bearing caps. What the LS gives up in outright efficiency, it makes up for in capacity, and, if you are looking at an engine swap, the LS V8 is one of the easiest and most cost-effective options available. You only need to compare the engine with something like the quad-cam Ford Coyote engine to see this first-hand. The deliberate move by GM engineers to retain a pushrod OHV engine design has resulted in a lightweight and compact engine package. In a modern world obsessed with efficiency, this seems like a backward step, but you can’t argue with the results. While some modern technology has crept in, one aspect that the LS family shares with the old small-block Chev engine is pushrod valve actuation. The result was a modular series of V8 engines that have taken GM into the modern age and spawned a massive aftermarket focused on getting the most out of these engines. Moving on from the success and popularity of the classic small-block Chev, GM applied some new technology in the form of EFI to a proven and reliable concept.
Love it or hate it, the LS engine family has taken the world by storm. G M’s LS series of aluminium V8 engines has been a breath of fresh air in the V8 performance market over the last decade.
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