What is a stroker engine and how it increases torque without changing displacement drastically? A stroker engine increases stroke, the distance a piston travels to raise displacement and torque. Stroke is determined by crankshaft throw. By using a crankshaft with a longer throw and sometimes longer connecting rods, the piston moves further up and down. This increases the volume swept per cylinder without needing a larger bore. A longer stroke generally produces more low-end torque because of the

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