A modification bundle designed to extend the displacement of the Jeep 4.0 liter inline-six engine. This sometimes includes changing the crankshaft, connecting rods, and pistons with parts which have an extended stroke, successfully rising the engine’s bore and/or stroke dimensions. The target is to reinforce the engine’s low-end torque and total energy output.
The attraction lies within the potential for important efficiency good points with out resorting to extra advanced and dear engine swaps. It gives a stability between affordability and improved driving expertise, notably useful for off-road purposes the place low-end torque is essential. The idea has developed over time, with numerous producers and builders providing totally different configurations and part decisions, catering to numerous efficiency objectives and budgets.