Ultimate Hot Rod Glossary – The H’s
Half Shaft: On rear-wheel drive vehicles with independent rear suspension, the rear axle is split into two independent axles – also referred to as half shafts. Front wheel drive vehicles also use half shafts.
Hammer: Originally employed as a weapon of war, the hammer nowadays is used as a kind of divining rod to locate expensive car parts not far from the object we are trying to hit.
Hard Top: An automobile designed to look like a convertible but having a rigidly fixed, hard top.
Hair Dryer: Slang for turbocharger (for the shape of the casing).
Hairpins: Radius rods.
Headers: Fine-tuned exhaust manifold that is more efficient than stock.
HEMI: An engine popularized by Chrysler that has hemispherical combustion chambers in its cylinder head.
Highboy: A fenderless customized Model A Ford coupe or roadster that sits at stock height.
Hood: The American term for engine cover. In England the hood is called a bonnet and a convertible top is called a hood.
Hopped Up: Stock engine modified to increase performance.
Hot Licks: Flames painted on the side of a car.
Hot Rod: Traditionally, an older vehicle with “low-buck” performance modifications.