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L

1. An acronym for Low, one of the forward gear positions of a transmission. 2. Liter, a unit of metric liquid measure.

L-head

A term used for L-head engine.

L-head Engine

An engine with intake and exhaust valves in the block, parallel to the pistons and cylinders.

L-Jetronic

A Bosch pulsed, electronic, fuel-injection system that uses input on the volume of intake air to calculate fuel delivery.

L/D

Light duty.

L4

In-line four cylinder.

La

Lanthanum An element with the atomic number of 57.

LA Kit

A reconditioned crankshaft that is supplied with the appropriate bearings and an installation kit.

Lab Scope

A device for viewing electrical signals as waveforms usually portable.

Labeled

An identifying mark or trademark of a nationally recognized testing lab that is attached to signify that the item has been tested and meets appropriate standards.

LAC

Low vacuum air control valve.

LAC& EACN

Low vac air control valve and electric air control valve.

LAC&LACN

Low vac air control valve and low vac air control valve.

Lacing

A method used to mend cracks in cylinder heads and blocks using threaded repair plugs side-by-side and overlapping each other.

Lacquer

A type of paint that dries by solvent evaporation that must be rubbed out to produce a gloss.

Ladder Bars

A device attached to the chassis or frame at one point and to the rear axle at two points on a drag-race car to reduce rear-axle windup.

Ladder Chassis

A conventional frame design that consists of two side rails, not necessarily parallel, connected to each other by a series of cross members like a ladder.

Ladder Frame

A term used for ladder chassis.

Lag

1. The incorrect operation of a shock absorber because of aeration due to the mixing of air with oils, causing the shock absorber to produce a poor ride. 2. To fail to keep up; to fall behind.

Lake Pipes

Straight exhaust pipes with no muffler.

 

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