The most common and readily available production power plants, and therefore most affordable, are the 4.8L and 5.3L variants. It is also possible to take aftermarket versions over 500 inches, but these cost even more than the factory combinations. For most mortals, these all-aluminum, large-displacement versions are mere pipe dreams. This same sliding scale continues with the larger 6.2L up to the massive 427 LS7. As displacement increases, so does pricing, meaning a 6.0L is considerably more expensive than a 5.3L. The LS engine family offers a number of different displacements, ranging from 4.8 up to 7.0 liters. Sure, ported heads, a cam, and the right intake will improve a 5.3L, but they will make even more power after adding the inches. When it comes to torque, bigger is always better, which is where stroker kits come in.
It is possible to increase torque production on a typical 5.3L LM7 using basic bolt-ons, but nothing builds torque like increased displacement. Whether you drive a truck, Camaro, or even street rod, enhancing torque production will yield substantial performance dividends. We all like to brag about horsepower numbers, but torque is the thing that impresses the passenger on a spirited test drive. If you are not familiar with torque, it is that thing that shoves you back in your seat when you step firmly on the gas. The idea of the build was to enhance torque production. Truth be told, this build up may have started with a 5.3L truck motor, but the result could be used for any of a number of performance applications.
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