Definition
A piston converts the expanding gases from combustion into linear motion inside each cylinder bore.
Performance builds often use forged pistons for higher boost and rev limits, while cast pistons suit many street applications.
Automotive Wiki
Engine
Piston
A cylindrical component that moves up and down inside the cylinder, transferring combustion force to the crankshaft.
Related terms
- CrankshaftThe main rotating shaft that converts reciprocating piston motion into rotationa…
- CamshaftA shaft with lobes that open and close intake and exhaust valves at precise timi…
- Cylinder HeadThe top section of the engine housing valves, ports, and often the combustion ch…
- Engine BlockThe main structural casting that houses cylinders, crankshaft bearings, and ofte…
- ValvetrainThe assembly of valves, springs, retainers, rockers, and camshaft that controls …
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Category: Engine · Updated August 31, 2026