JDM Nissan Fairlady Z VG30DETT Twin Turbo Engine and 5-Speed Manual

The Z32 300ZX twin turbo is one of the defining Japanese sports cars of the 1990s, and its VG30DETT engine is the reason why. This used JDM VG30DETT engine and transmission combo gives you that legendary twin-turbo V6 along with its matching 5-speed manual, rear-wheel-drive gearbox. As a result, it’s a complete drivetrain for restoring a twin-turbo Z or building one from a non-turbo car.

The VG30DETT

The VG30DETT is a 3.0L DOHC V6 with two turbochargers. In Japanese trim, Nissan rated it at 280 PS, the maximum allowed under the era’s gentlemen’s agreement among Japanese automakers. In practice, it delivers smooth, strong power, and it responds well to upgrades. Moreover, it has a deep aftermarket, so there’s plenty of room to grow.

Why the Manual Matters

Manual-transmission twin-turbo Z32s are the most desirable versions of the car. Over the years, however, many manual gearboxes wore out, while automatics are far more common. Therefore, a matched engine and 5-speed combo is valuable. With both in one package, you skip the hunt for a compatible manual and know the two came from the same car.

Replacement or Conversion

• Replacement: for 1990–1996 Nissan 300ZX twin turbo owners whose engine or transmission has failed
• Conversion: for non-turbo Z32 owners who want twin-turbo power and a manual gearbox

A non-turbo conversion also needs twin-turbo-specific parts, such as intercoolers, piping, wiring and the correct ECU. So, call us before you buy, and we’ll help you plan a complete parts list. For background, see the Nissan 300ZX overview.

Compression Tested Before It Ships

We compression test all six cylinders and record a video of the test. Also, the photos on this page show this exact engine, transmission and serial numbers. That way, you can buy with confidence.

Before You Install

1. Replace the timing belt, tensioner and water pump, since the VG30DETT uses a timing belt.
2. Fit new spark plugs, oil, filter and coolant, and inspect the turbo oil and coolant lines.
3. Install a fresh clutch and resurface or replace the flywheel.
4. Fill the transmission with fresh gear oil of the correct grade.
5. Prime the oil system and confirm turbo oil feed before the first start.

Professional Installation Available

Want it done right the first time? J-Spec Auto Sports installs the engines, transmissions and parts we sell at our shop in Henrico, Virginia, near Richmond. We handle Z32 replacements and twin-turbo conversions, from timing belt service to the first start. To get a quote or book a time, schedule an appointment or call 866-683-3747.

Shipping

We drain the engine and transmission, cap them and strap them to a pallet, then ship by freight anywhere in the continental US. Alternatively, local pickup is available in Henrico, VA.

FAQ

Is the transmission included?
Yes. This combo includes the VG30DETT engine and its 5-speed manual, rear-wheel-drive transmission.

Will it fit my 1994 300ZX twin turbo?
Yes, as a replacement. Send us your VIN to confirm details.

Can I put it in my non-turbo Z32?
Yes, as a conversion, with twin-turbo-specific parts such as intercoolers, wiring and the correct ECU.

Does it have a timing belt?
Yes. We recommend replacing the timing belt, tensioner and water pump before installation.

Is it compression tested?
Yes. We test all six cylinders and can send you the video.

Can you install it?
Yes, at our Henrico, VA shop. Call 866-683-3747.