FJ80 Holden V8

80 Series Land Cruiser Information:

FJ80 manufactured from January 1990 to August 1992 powered by the 6-cylinder 4 litre 3F or 3F-E, 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 304, 308 and 350 Cubic Inch Holden V8 engines.

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.

Holden V8 to the Land Cruiser 5-Speed Manual

Holden V8 to FJ80 5-Speed Manual Kit part no. (MFK560#####) utilises the GM flywheel and clutch along with the Toyota bellhousing and sandwich plate. Instead of a new bellhousing, a flywheel housing is supplied which measures 122 mm/4.8" long. This housing has the GM bolt pattern on the front and the Toyota 3F, bolt pattern on the rear.

The kit has been designed to allow for firewall clearance without shifting the transmission or altering the drive shaft lengths.

The gear box input shaft is coupled to the clutch via an input extension shaft. The shaft has the Toyota internal spline and spigot diameter on the gearbox end with the GM external spline and spigot diameter on the engine end. The front of the shaft is supported in the crankshaft by a sealed ball bearing inside an adaptor ring.

The clutch is operated through a thrust bearing extension sleeve, which is supported in a machined boss located in the centre of the housing. On the front of the sleeve is a bearing to suit the GM clutch pressure plate.

Engine Mounting

The engine mounting kit to suit the FJ80 series Land Cruiser consists of replacement chassis brackets, engine mounting rubbers and bolts. The original Toyota chassis brackets are welded to the chassis and must be cut off with a grinder to make room for the new brackets. The new brackets must also be welded to the chassis, if you're not a good or qualified welder we suggest a contract welder do the job.

Interface Wiring and Speed Sensor

Marks 4WD Adaptors manufacture an interface wiring loom for Holden EFI V8 engines to fit any model Land Cruiser, to compliment the loom we also manufacture a special speed sensor interface.

Tachometer Interface

Marks 4WD Adaptors now manufacture a new interface designed to calibrate your existing Toyota 6-cylinder petrol tachometer so that it can be driven from your V8 Chevy or V8 Holden engine. This eliminates the inconvenience of removing your tachometer from your dashboard to have it re-calibrated. The unit is easy to install and only requires a connection to the ignition coil, tachometer wire, earth B- and ignition B+.

BCM

Commodore VR and VS engine computers (PCM's) require a security signal from the body control module before the engine can be started. The BCM simulator is programmed to supply the correct security signal allowing the engine to be started.

The simulator is programmed to send both VR and VS security codes.

The simulator is also equipped with an output to control a relay for the engine cooling fan. This option will only work with VS models.

PCM Mem-Cals

Commodore VT engine management computers require a stream of data to be sent to them from the body control module, prior to starting the engine. This is part of the vehicles anti theft system. The stream of data required by the PCM is special. Fortunately the input to the PCM can be switched off by changing the program information in the mem-cal. Marks 4WD Adaptors can supply mem-cals on an exchange or out right basis.

EFI Component Brackets

Marks 4WD Adaptors also manufacture a range of brackets to make the EFI parts easy to install. E.g. the high pressure fuel pump and damper bracket kit, relay mounting, high pressure fuel filter bracket, carbon canister bracket, map sensor bracket and mounting bolts, nuts and clamps.

EFI High Pressure Fuel Pump

The FJ80 fitted with the 3F carburettor engine will require a high pressure fuel pump and filter system when fitting the EFI Holden V8 engine. Marks 4WD Adaptors now have a kit that includes a high pressure, fuel pump, and filter along with all of the other EFI component mounting brackets required to do the job.

If your vehicle is fitted with a 3F EFI engine the high pressure, fuel pump kit will not be required as the existing Toyota high pressure, pump will do the job.

Holden 308 V8 Bolt Patterns

When ordering Holden 308 V8 kits, please advise whether the bolt pattern at the rear of the engine is Trimatic or Turbo (Chevy) pattern.

The 1988 VN and later 304 C.I. engines have the Turbo bolt pattern.

The bolt patterns are illustrated below.

Kit Part Numbers Are As Follows: