This term for the nausea and vomiting accompanying pregnancy is something of a misnomer, actually, since such gastrointestinal issues certainly arenât limited to the morning hours.
Small Block: The smaller of a manufacturers two series of engines. In the case of Chevy, the small block includes the 262, 265, 267, 283, 302, 305, 307, 327, 350, and 400. Big Block: The larger of a manufacturers two series of engines. In the case of Chevy, the 366, 396, 402, 427, and 454.
  A 'non-interference engine' is designed so that if the timing belt or chain breaks while running, the valves will not strike the piston tops. The engine will only stop running without damage.