The 534 produced 277 hp at 3400 rpm and 490 lb·ft of torque at 1800-2300 rpm. A marine version, commonly referred to as the "Seamaster" was also available starting in the late 1950s. The Seamaster was available with twin turbochargers, and weighed over 1,300 pounds installed.

Introduction
The 534 was introduced in 1958 as a viable alternative to the new turbo-diesels that were just beginning to hit the large truck and towing market.

Engine Family
The 534 was part of Ford's Super-Duty engine family, which shared almost no common components with any other.

Basic Architecture
This monster-block does bear a certain family resemblance to the Y-Series and FE big-blocks that were introduced with it, but everything on the Super-Duty block is at least 10 percent bigger than on either of those.

Power and Weight
Road-bound versions of the 534 were rated at 234 horsepower at 3,400 RPM, and 490 foot/pounds of torque from 1,800-2,300 RPM. The engine was surely a porker, at well over 1,000 pounds.

The Seamaster
The Seamaster Marine version of the 534 came factory-equipped with a pair of turbochargers and inter-coolers, and made over 400 horsepower and 900 foot/pounds of torque.