CLASSIC NEVER DIES

The Toyota 1JZ and 2JZ Engine: Powerhouse Inline Six Engine

1JZ Engine Series: Precision Crafted for Performance

Introduced in 1990, the 1JZ engine series marked a pivotal moment in Toyota’s engine development journey. This engine’s variants catered to drivers for very different driving preferences and performance aspirations, creating a variety of options for the Japanese automaker.

1JZ-GE inside of a Toyota Mark 2 sedan — *With similar designs the 1JZ and the 2JZ engines look almost identical.* Here is a closeup of a 1JZ 2.5L Engine available in the Toyota Chaser’s, Mark ll and Alteeza (IS300 USDM) vehicles.
Source: Bring-A-Trailer

1JZ Engine	Power	Displacement	Configuration
1JZ-GTE (Twin-Turbo)	220 HP / 223 PS / 164 kW	2.5L	Inline 6
1JZ-GE	168 HP / 170 PS / 125 kW	2.5L	Inline 6

Approx. performance specs of 1JZ engines

This JZ variant boasts a 2.5-liter inline-six configuration, augmented by sequential twin-turbocharging. Delivering a power output ranging from 200 to 220 horsepower and torque ranging from 200 to 268 lb-ft, the 1JZ-GTE captivated enthusiasts with its innovative sequential twin-turbo system. Its ability to seamlessly balance low-end torque with high-end power made it a sought-after engine for a range of Toyota models, including the Chaser and Mark II and Alteeza.

White Mark 2 in front of grey roll up garage doors on asphalt — Toprank Importers, noted for importing classic JDM vehicles direct to consumer from Japan. One of those models available was this 99′ Toyota Mark ll.
Source: Toprank Importers

On the other end of the spectrum, the naturally aspirated 1JZ-GE showcased Toyota’s engineering finesse with its 2.5-liter inline-six configuration. This variant, while not turbocharged, demonstrated a reliable and balanced performance profile. With horsepower climbing toward 168+ and delivering torque to about 220 to 268 lb-ft, the 1JZ-GE was a canvas for tuners who sought to enhance performance while prioritizing the simplicity of a naturally aspirated engine.

black 4 door car next to water and on a concrete floor — Toyota Altezza, or if you’re from the states, the IS300.
Source: Toyota

1JZ-GE engine with stock coverings in a Lexus Engine — The 1JZ-GE almost unrecognizable with the Lexus badging and engine cover hiding the JZ.
Source: Toyota

A fuel-efficient variant of the 1JZ engine series, integrating direct injection technology for enhanced combustion efficiency and reduced emissions. Designed with environmental concerns in mind, it maintains a power output of approximately 200 horsepower, offering a more eco-conscious driving experience without compromising on performance. This engine found its place in models like the Toyota Crown, exemplifying Toyota’s commitment to sustainable mobility.