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 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.

NOTE: As this kit was originally designed to replace the F series petrol engine some second hand parts will need to be purchased for the installation. A bellhousing from a 2F or 3F 6-cylinder petrol with all of the clutch components such as the slave cylinder, clutch fork etc.

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 engine mounting kit to suit the 60 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 removed to make room for the new brackets. The new brackets must be bolted or welded to the chassis, if you're not a good or qualified welder we suggest a contract welder do the job. The new chassis mounts have been designed to give you sufficient legal sump clearance between the differential and the bottom of the engine when used with a standard rear bowel GM sump.

Marks 4WD Adaptors manufacture an interface-wiring loom for Holden EFI V8 engines to fit any model Land Cruiser. The loom comes with the GM plugs, all relays, and fuses mounted in waterproof holders, and instructions.

Marks 4WD Adaptors also manufacture an inline speed sensor. The speed sensor is screwed into the transfer case in place of the speedometer cable, which screws into the back of the new sensor. The signal from the sensor is sent to an interface box, which then processes the signal prior to sending it on to the ECM. The speed sensor comes with the sender, an interface box, with an interconnecting loom, which has a waterproof plug located near the sender. A small loom is also provided to allow the interface box to be connected to the ECM, ignition B+ and earth.

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.

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.

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.

The HJ60 fitted with the 2H diesel 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 EFI component-mounting brackets required to do the job.

Holden V8 engines are available with two bellhousing bolt patterns all 253 C.I. engines have the Holden Trimatic bolt pattern.

The 308 C.I. engines are available with the Turbo or Trimatic bolt patterns.

The 1988 VN and later 304 C.I. and 350 C.I. engines have the Turbo bolt pattern.

The bolt patterns are illustrated below.