Intake, compression, power, then exhaust. Every 4-stroke engine ever made – about 80% of all engines currently in existence – function on this principle – even rotary engines. But now, Porsche has ...

OHV stands for overhead valve, and these types of powerplants can also be called pushrod engines. OHV engines have the intake and exhaust valves located above the camshaft, which is in the engine ...

The first difference that stands out between the LSA and LT4 General Motors engines is that the first is obviously an LS, while the latter is an LT. While being of two distinct small block engine ...