Car Culture HQ
Automotive Wiki

Engine

Engine Block

The main structural casting that houses cylinders, crankshaft bearings, and often coolant passages.

Definition

Block material and bore spacing set the foundation for displacement and strength.

Closed-deck and four-bolt main designs are valued in high-boost applications.

Related terms

  • PistonA cylindrical component that moves up and down inside the cylinder, transferring
  • 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
  • ValvetrainThe assembly of valves, springs, retainers, rockers, and camshaft that controls
  • Timing BeltA toothed belt synchronizing crankshaft and camshaft rotation in many overhead-c

Category: Engine · Updated August 31, 2026