A modification bundle designed to extend the cubic inch displacement of a 6.4-liter Hemi engine to 426 cubic inches. It typically features a crankshaft with an extended stroke, together with matching pistons and connecting rods to accommodate the elevated stroke. These parts work in live performance to change the engine’s geometry, leading to a bigger swept quantity inside the cylinders.
The aim of this improve is often to reinforce engine efficiency, particularly to generate higher torque and horsepower. Growing the displacement permits the engine to attract in and combust extra air and gas per cycle, resulting in a extra forceful energy supply. Traditionally, rising engine displacement has been a standard technique to extract extra efficiency from inside combustion engines, and this method continues to be standard within the aftermarket efficiency trade.
