Toyota Century 1GZ-FE V12 JDM Engine & Auto Trans

Description

The Toyota 1GZ-FE V12 engine with automatic transmission is one of the rarest and most iconic Japanese Domestic Market (JDM) powertrains ever produced. Originally designed for the flagship Toyota Century luxury sedan, this engine represents the peak of Toyota engineering, offering a blend of unmatched smoothness, power, and exclusivity. With its 5.0L naturally aspirated V12 configuration, dual VVT-i system, and paired automatic transmission, this JDM unit provides enthusiasts with a truly unique upgrade option.

Engine Overview

• Engine Code: 1GZ-FE

• Configuration: 5.0L DOHC V12

• Technology: Dual VVT-i (Variable Valve Timing with intelligence)

• Aspiration: Naturally Aspirated

• Power Output: Approx. 276–310 HP (factory rating, limited in Japan)

• Transmission: Automatic gearbox (RWD application)

The 1GZ-FE is Toyota’s only production V12 engine, designed with refinement in mind but capable of handling performance builds, including turbocharging. The stock power rating was restricted in Japan due to the “Gentlemen’s Agreement,” but tuners worldwide have unlocked significant hidden potential.

Fitment & Compatibility (Direct Fit & Swaps)

This JDM engine and transmission set is a direct fit for the Toyota Century (1997–2017). However, due to its legendary status and adaptability, it has also become a popular swap candidate for high-performance and luxury builds.

Compatible applications include:

• 1997–2017 Toyota Century (GZG50) – original fitment

• Toyota Supra MK4 (JZA80, 1993–2002) – custom swap option

• Lexus LS400 / LS430 (UCF20/UCF30, 1995–2006) – swap potential

• Toyota Aristo / Lexus GS (JZS147/JZS161, 1991–2005) – custom project swaps

• Toyota Soarer / Lexus SC (UZZ30/UZZ31/UZZ32, 1991–2000) – high-end conversion projects

This makes the 1GZ-FE engine/transmission set highly desirable not only to Century owners but also to enthusiasts seeking a unique JDM V12 powerplant for their performance or luxury projects.

Mileage & Condition

This JDM 1GZ-FE unit comes with approximately 54,000 miles, verified through deregistration records in Japan. Japanese emissions and inspection laws (Shaken) lead to early retirement of engines, meaning this V12 powerplant has significantly less wear than most used international equivalents.

Included Components:

• Complete 1GZ-FE 5.0L V12 engine assembly

• OEM Toyota automatic transmission (RWD)

• Intake manifold & throttle body

• Alternator & starter motor

• Engine wiring harness (as available)

• ECU (when included with lot – please confirm)

Testing & Quality Assurance

All engines and transmissions are compression-tested and inspected prior to export. Testing includes:

• Compression check across all 12 cylinders

• Leak-down test for sealing integrity

• Transmission engagement and shifting test

• Visual inspection for leaks, cracks, or damage

Why Choose the 1GZ-FE V12?

• Exclusivity – Toyota’s only V12 production engine

• Smooth Performance – designed for ultra-luxury refinement

• Swap Potential – Supra MK4, Aristo, Soarer, Lexus LS/GS/SC

• Low Mileage Advantage – typical JDM pullout under 60k miles

• Aftermarket Support – strong interest in turbo and performance upgrades

Warranty & Shipping

• 6-Month Limited Warranty on internal engine and transmission components

• Ships on a secure, crated pallet for safety in transit

• Nationwide freight shipping available

• Warranty valid only with professional installation

Ideal Buyers

• Collectors restoring or preserving a Toyota Century

• Performance builders seeking a unique V12 swap for a Supra or Lexus

• Customizers looking for a rare and prestigious JDM powertrain

• Enthusiasts aiming for maximum exclusivity in their project cars

With its rarity, engineering brilliance, and cross-compatibility, the Toyota 1GZ-FE V12 engine with automatic transmission is not just a replacement—it’s a statement piece for any high-end build.