DICTIONARY OF AUTOMOTIVE TERMS - "Lh"

LH
Acronym for left hand
LHD
Acronym for Left hand drive.
L head
L-head
L head engine
L-head engine
L-head engine

L-head engine

An engine having both valves in the block and on the same side of the Cylinder. The arrangement of the valves in the block and the Combustion chamber forms an L shape. This type of valve train was used in the early years of automotive engineering and is no longer found (with some minor exceptions) in modern engines. Compare F-head engine where one valve is in the head and the other is in the block; and I-head engine where both valves are in the head and none in the block. Also called side-valve engine.
Also see

LH-Jetronic
Bosch LH-Jetronic system measure air mass (weight of air) with a hot-wire sensor instead of measuring airflow with a vane, or flap, type air volume sensor used on L-Jet systems. The H is short for heiss hot
LHM
Acronym for Liquide Hydraulique Minerale
LHV
Acronym for Lower Heating Value