A modification package deal 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 elements 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 usually to boost engine efficiency, particularly to generate larger torque and horsepower. Rising the displacement permits the engine to attract in and combust extra air and gasoline per cycle, resulting in a extra forceful energy supply. Traditionally, growing engine displacement has been a standard technique to extract extra efficiency from inner combustion engines, and this method continues to be common within the aftermarket efficiency trade.
