Hot Rod, Custom and Dry Lakes Racing
Terminology 101 (References)

two-port job: a Model A or B block with a two-intake-port head (usually applies to a Riley head).

Unlimited: Pre-WWII class for cars with large engines, such as Marmon or Cadillac V-16s, or cars with supercharged engines.

V-butting: Hot rod and Custom technique of mating two flat windshield sections together at the center after the center post has been removed.

WTA: Western Timing Association.

Z'd frame: An effect used to lower a car without effecting suspension geometry. The effect consisted of cutting part of the chassis, raising it and re-welding it to form a "Z" shape when viewed from the side. This allowed for more clearance for the rear differential or front axle to ride higher in the chassis thus decreasing the car's overall ground clearance.

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