Toyota had worked with Yamaha to produce the first Japanese full aluminum alloy block engine.
The V family is often referred to as the "Toyota Hemi"[citation needed] as the engine features a cylinder head design with approximately hemispherical combustion chambers.
Thereafter the Crown Eight was replaced by the upmarket Toyota Century.
The 3V, 4V and 5V engines were used in the Toyota Century up until 1997, when it got a complete redesign and replaced the V8 for the 5.0 L 1GZ-FE V12.
The position of the spark plugs, like the 2T-C and Chrysler's Hemi, were located on the top of the head.