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Short Deck Engine

An engine block designed to accommodate a short-stroke crankshaft.

Short Gear

A final drive with low gearing.

Short Side Radius

The small radius in a port between the bottom of the port runner of the intake manifold and the bowl area.

Short Term Adaptive's

See short term fuel trim.

Short Term Fuel Trim

The short term compensation made by the engine controller to vary injector pulse width by a percentage to maintain minimal emissions output.

Short Ton

A standard English weight equal to 2,000 pounds.

Short Track

An oval race track that is less than one kilometer (5/8 mile).

Shorted Circuit

A circuit that allows current to bypass part of the normal path.

Shot

Pellets used with air pressure to clean parts.

Shot Bag

A leather bag filled with #9 birdshot used by metal workers to help shape and form metal panels.

Shot Peen

To harden the surface of a metal part by bombarding it with metal shot using high air pressure.

Shot Rodder

One who is discredit to the sport of hot rodding.

Shotgun Motor

A rare Ford big block 429 cid Hemi, offered in 1969 and 1970.

Show 'n' Shine

To display a hot rod or custom car in a car show.

Show Car

A custom-built car for show and not for driving, though derivable.

Show Through

The appearance of a sanding pattern after the vehicle has been painted..

Showroom Stock

A factory-stock vehicle with minor modifications and safety equipment under SCCA rules.

Shrink

To reduce an area of a piece of metal by heating and hammering it.

Shrink Fit

A tight or snug fit accomplished by shrinking a part.

Shrink Wrap

A shrink-fit tubing used to protect wires, wire splices, and terminals of an automotive electrical system.