Chevy / Holden LS1, LS2, LS3 V8 Engines to
LAND ROVER / RANGE ROVER 4 and 5-SPEED TRANSMISSIONS
Also
Chevy / Holden LS1, LS2, LS3 V8 Engines To RANGE ROVER / LAND ROVER ZF 4-SPEED AUTOMATIC TRANSMISSIONSMarks 4WD Adaptors manufacture engine conversion kits to allow the fitting of Chevy/Holden LS1, LS2, LS3 V8 engines to the standard Range Rover / Land Rover 4 and 5-speed transmissions. These engine conversion kits will also suit Land Rover 109" and 110" wheel base including the Land Rover Defender and the Discovery fitted with the Rover alloy V8 engine. Kits will soon be available to suit the factory 4-speed automatic transmissions. |
|
Engine Kit The GM V8 engine kit consists of an adaptor plate that bolts to the rear of the engine. The standard Range Rover / Land Rover V8 bellhousing then bolts to the rear of the adaptor plate. The transmission does not need repositioning for this conversion as the GM V8 engine has similar external dimensions as the Range Rover / Land Rover V8 engine. A spigot bush, spigot bush adaptor, bellhousing cover plate and all the required bolts are supplied with the kit. Engine Mounting At the time of writing no engine mounting kits are available. Flywheel
The new flywheel with
the 153-tooth ring gear must be used. The original flywheel fitted with a 168 tooth ring gear will not fit inside the bellhousing.
The LS engine can be fitted to the vehicle without the need to reposition the transmission, or alter drive shaft lengths. Starter Motor The standard LS starter motor is designed to turn a flywheel with a 168 tooth ring gear. Marks 4WD Adaptors manufacture a new starter motor that is designed to turn a flywheel fitted with the 153 tooth ring gear. Clutch Kits A heavy duty pressure plate must be used with the LS engines. Two kits are available, one for the Range Rover / Land Rover 4-speed transmission with a 10 tooth clutch spline. The other clutch kit for the Range Rover / Land Rover 5-speed transmission with a 23 tooth clutch spline. A Range Rover / Land Rover clutch kit can be used but the GM flywheel will need to be re-drilled and taped to accept it. Headers
The original Commodore/Chevy cast iron exhaust manifolds will not between the chassis rails. Marks 4WD Adaptors manufacture purpose build headers that exit between the chassis rails. See the following photo's.
Commodore and Chevy 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 unique. Fortunately the input to the PCM can be switched off by changing the program information. Marks 4WD Adaptors can re program your PCM. Interface Wiring LoomLS1 Marks 4WD Adaptors have now designed an interface wiring loom for Gen3 engines. The loom replaces the original GM engine loom, it is fitted with all of the required relays, fuses and plugs to connect the PCM to the engine. The loom is fitted with the standard GM diagnostic plug to make fault finding a breeze. To help with the installation we have also included a Tacho output wire, a VSS output/input wire and a TPS wire. Marks 4WD Adaptors also manufacture an interface harness for the VT engine harness. The interface harness plugs directly into the VT 3 plug harness, It comes with all the required fuses and relays. LS2 Engine ManagementMarks 4WD Adaptors now manufacture a full engine management kit for the LS2, L76, L98 engines using the E38 two plug ECM. The kit comes with a full engine harness, fitted with all the required fuses and relays. The kit also includes the O2 sensors, MAF sensor, pre programmed E38 ECM (No VATS) and a new pedal assembly. Note this kit will pass emissions as it does include the fuel purge wiring and ECM programming required. Marks 4WD Adaptors also stock an off road racing engine management system. This kit is similar to the previous one but is designed solely for racing purposes, this system will not pass emissions and therefore is not legal for road use.
|
Kit Part Numbers
Chevy / Holden LS1, LS2, LS3 V8 Engines
To
RANGE ROVER / LAND ROVER ZF 4-SPEED AUTOMATIC TRANSMISSIONS
Back to CHEVY V6 and V8 ENGINES to LAND ROVER / RANGE ROVER 4 and 5-SPEED TRANSMISSIONS
| Marks 4WD Adaptors manufacture a range of engine conversion kits to allow the fitting of Chevy V6 and V8 engines to the standard Range Rover / Land Rover ZF 4-speed automatic transmission.
The front coil springs on the Range Rover / Land Rover will need to be upgraded as the cast iron GM engines are heavier than the light weight alloy Rover V8 engine. Engine Kit The GM V8 engine kit consists of an adaptor plate that bolts to the rear of the engine. The standard Range Rover / Land Rover V8 bellhousing then bolts to the rear of the adaptor plate. The transmission does not need repositioning for this conversion as the GM V8 engine has similar external dimensions as the Range Rover / Land Rover V8 engine. The transmission torque converter is coupled to the flywheel via a crankshaft adaptor. The adaptor has the Rover flex plate 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 Rover flex plate and torque converter to be bolted to the rear of the crankshaft adaptor, same as the old Rover V8 engine. On the front of the crankshaft adaptor a flywheel is used instead of a flex plate, as there is no provision to support a flex plate when the starter motor is engaging. Note 1: Late model 4.0ltr and 4.6ltr Rovers from 1996-2000 with the Borg Warner transfer case have a different flex plate bolt pattern and torque converter, they need to be replaced with one from an earlier model fitted with the LT230 transfer case, this will enable the use of our kit. Note 2: Range Rovers and Land Rovers fitted with the Borg-Warner viscous transfer case built between 1989-94 also have a different flex plate, torque converter setup and will not fit our adaptor kit, you will need to purchase a flex plate and torque converter from a vehicle fitted with the LT230 transfer case. When ordering the Chevy kit you must make sure that the GM starter motor 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. You must use a 153T flywheel with this kit. 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 diameter, which locates the flywheel to the crankshaft (52.4mm). 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. As the original GM flywheel and starter motor are used for the conversion. The bellhousing will need to be modified to allow the starter motor nose to clear. If a hi-torque starter motor is used the bellhousing modification can be minimised. Engine Mounting Engine mounting kits are available to suit GM engines. The engine mounts have been designed to bolt to the side of the GM engine and then bolt directly to the original Range Rover V8 pre 1996/ Land Rover V8 pre 1999 engine mount rubber and chassis mount. The original chassis mounts do not require relocation. The engine mountings have been designed to give you sufficient legal sump to differential clearance when used with a standard GM rear drop sump.
|
GM ENGINE TO ZF 4-SPEED AUTOMATIC CONVERSION KITS
Copyright © 2006
Marks 4WD Adaptors 
Last modified:
May 10, 2011
