What are the parts included in short block of engine?

Answer 1

Usually the internals of the engine like the crankshaft, pistons, oil pump, and some other essentials like the flywheel, harmonic balancer, and the oil pan. Lower engine sensors and wiring may also be included, but don't expect them to be. Everything else; heads, intake manifold, carburetor/throttle body/fuel rail, headers, ignition coil (distributor), timing belt, and accessory drive pulleys would not be included.