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Bi

Bismuth An element with the atomic number of 83

Bias

1. A diagonal line of direction. 2. The term applied to the electrical, mechanical, or magnetic force of voltage applied to a device to establish the reference point for operation.

Bias Voltage

Voltage applied across a diode

Bias-belted Tire

A tire that has the ply cords placed diagonally across the tire from bead-to-bead, with alternate ply layers crises-crossing diagonally in opposite directions.

Bias-ply Tire

Tire construction in which the cords in the body plies of the carcass run from bead to bead at an angle from 26 to 38 degrees instead of 90 degrees as in a radial ply tire.

BID

Breakerless inductive discharge

Big Arm

1. The throw of a crankshaft that has been stroked. 2. Sometimes used to identify an engine with a stroked crankshaft.

Big Block

A large-size V8 engine block, as designated by the automaker. For example, most Ford big-blocks feature a displacement of 429 or 460 cubic inches in stock form. Ford's FE-style big-blocks displace from 252 to 428 cubic inches. Chevrolet big-blocks displace 396 to 502 cubic inches. Chrysler Wedge big-blocks displace 383 to 440 cubic inches. And most Chrysler Hemis displace 426 cubic inches.

Big Bore

A term often used for big block.

Big End

The crankpin end of a connecting rod.

Big Red Wrench

Slang for an oxyacetylene-cutting rig.

Big Three

The three major United States automobile manufacturers, Chrysler, Ford and General Motors.

Big-amped Crossover

A crossover network that connects two amplifiers.

Bigfoot Lifter

A term used for mushroom lifters.

Bigs

Large rear tires.

Bigs And Littles

A combination of large rear tires and small front tires.

Bike Rack Cargo Area

A rack designed to secure bicycles in the cargo area of an SUV or van. Most models are fork-mount racks, which require the removal of the front wheel.

Bilevel

A collection whereby air is delivered at two levels in the vehicle, generally to the floor and dash outlets at the same time.

Billet

As a noun

Billet Camshaft

A crankshaft machined from a billet of steel.