FZJ80 manufactured from August 1992 to 1998 powered by the 6-cylinder 4.5ltr petrol engine. The transmission a 5-speed manual or a 4-speed automatic, with a lockup torque converter. The transfer case type HF2A (full time FWD) or HF1A (part time 4WD).

Marks 4WD Adaptors manufacture kits that allow the fitting of 305 C.I., 350 C.I. early and late and LT1, and 454 C.I.

To comply with Australian emission laws the new engine must have been manufactured the same year or later than the vehicle. The engine must also have all of the emission components connected, including the catalytic converter. In this instance the engine must also be run on unleaded fuel or LPG. An older engine can be fitted providing it's run only on LPG fuel.

In Australia an engineer's report is required after the conversion has been completed. Contact your local RTA office for a list of engineers.

The new flywheel supplied in the kit accepts the original Toyota 12" clutch. The flywheel is offset to the rear to place the clutch in its original position. The flywheel has no ring gear and must be used with the original GM flex plate and ring gear. Spacers and bolts are supplied to fix the flex plate to the back of the flywheel.

When ordering a Chevy kit you must make sure that the GM starter motor you intend using is the correct type. Chevy V8 engines were released with two flywheel and flex plate sizes; they where fitted with a 153 tooth ring gear or 168 tooth ring gear, as a result two starter motor offsets are available.

It will also be necessary to identify the year of the engine, after 1986 the engine crankshaft bolt pattern changed. The bolt pattern is smaller as is the spigot, which locates the flywheel on the crankshaft (52.4-mm). The post 1986 Chevy small block engines are also externally balanced. One way to identify a late model Chevy engine is by the one-piece external, rear main oil seal.

The transmission torque converter is coupled to the flywheel via a crankshaft adaptor. The adaptor has the Toyota bolt pattern and spigot diameter on the transmission end with the GM crankshaft bolt pattern and spigot diameter on the engine end.

This allows the Toyota flex plate and torque converter to be bolted to the rear as with the old 1FZ engine. On the rear of the engine the GM flywheel is used instead of a flex plate, as there is no provision to support a flex plate when the starter motor is engaged.

When ordering a Chevy kit you must make sure that the GM starter motor you intend using is the correct type. Chevy V8 engines were released with two flywheel and flex plate sizes; they where fitted with a 153 tooth ring gear or 168 tooth ring gear, as a result two starter motor offsets are available.

It will also be necessary to identify the year of the engine, after 1986 the engine crankshaft, bolt pattern changed. The bolt pattern is smaller as is the spigot, which locates the flywheel on the crankshaft (52.4-mm). The post 1986 Chevy small block engines are also externally balanced. One way to identify a late model Chevy engine is by the one-piece external, rear main oil seal.