Land Cruiser manual - Advance Adapters

ly. This new housing provides a new engine location that
simplifies the drivetrain positioning for the popular V8 conversion.
This new design incorporates the use of a stock
Chevy 168 tooth flywheel, Chevy pressure plate, clutch disc,
original Toyota release bearing, throw out arm, and slave
cylinder. This kit is a little more expensive than the our
bellhousing design, but offers some distinct advantages
which makes it a good option for a V8 conversion.
We supply the necessary components to
adjust the engine position to accommodate the
North American steering configuration.
When using the Mark's bellhousing, you will be
able to retain the bellhousing support on the driver's
side by simply spacing it away from the original bellhousing.
Most of the Chevy blocks used a triangular motor mount bolt pattern (shown right). Our conversion mounts all utilize this most common
4 INTRODUCTION / ENGINE SELECTION
e
ENGINE SELECTION
The passenger side mount has been re-manufactured and
will offer an ideal engine location without driveline modifications.
No matter what your drivetrain or conversion needs
may be, we are fully capable of supplying the necessary
components for your Toyota Land Cruiser.
This manual will help you to identify your stock
drivetrain components and give you your conversion
options. It also supplies information of steering
upgrades, as well as reprint articles about converted
vehicles. If you should have any questions or
need clarification on your specific application, please feel
free to contact our trained technical sales staff.
TOOLS REQUIRED:
Toyota Land Cruisers are put together with all metric fasteners. If you do not have a good selection of metric and standard wrenches,
then we would suggest that you purchase the appropriate wrenches before you start your conversion. Along with these tools, it is
advised that you have an engine hoist and a torque wrench to complete the conversion properly. Some conversions require some
welding or cutting for mounting of the engine. Please refer to your specific vehicle application listed in this manual for further
information concerning modifications. For electrical wiring diagrams and Toyota torque specifications, you will need a Toyota Land
Cruiser service manual.
The next step is to define the use of the vehicle and then select a motor which best fits those needs. We manufacture motor
mounts, headers, and bellhousing adapters for most Chevy and Ford engines. Depending on what motor you choose, every
practical need can be met. The overall size of your Land Cruiser provides you an easy installation with a minimum amount of
modifications.
Small Block Chevy V8:
There are many different Chevy small blocks. The 283, 305, 350, 383, T.B.I., T.P.I., LT1, LT4, LS1, and the Vortec V8 are all examples.
When it comes to the usage of these engines most of them can be treated the same.
The bellhousing bolt patterns on these block are all identical. (This is known as the 90 degree bolt pattern). These engines use
a dowel pin alignment. The stock starter bolts to the bottom of the block except on some early blocks like the 265. (Note: These
early blocks, in which the starter bolts to the bellhousing, should not be used for conversions). The flywheel can either be 153 tooth
measuring 12-3/4” in diameter, or 168 tooth measuring 14” in diameter. The 1985 & earlier flywheels are not interchangeable with
the 1986 & later flywheels due to a change on the flywheel crank bolt pattern and balancing. The Chevy Vortec Generation III blocks
used yet another crank bolt pattern and balance different than any of the other GM blocks.
The Chevy starters have two different bolt patterns on the bottom of the block. The straight bolt pattern is normally used with the 153T
flywheel, and the offset or staggered starter bolt pattern is normally used with the 168T flywheel. Many Chevy blocks today offer both
starter bolt patterns on the block. Some of our conversion bellhousings require a special GM starter nose cone. If your stock starter
is interfering with our bellhousing, you may need to grind on the bellhousing a bit or purchase a hi-torque starter which does not
have a nose cone: GM# 1968122 (for use with a 153T flywheel). The Vortec Gen. III blocks had their own unique starter bolt pattern.
WARNING: Do not use one of our full bellhousings with a diesel engine. The starter will not fit the bellhousing pocket on our
bellhousing.
The oil pans on Chevy blocks have gone through a few changes. Blocks 1985 & earlier are all the same, except the dipstick access
is either on the driver’s side or passenger side. In 1986, GM changed their gasket design to a one piece rear main seal. The earlier
style oil pans will not fit the newer blocks. The Vortec engines use an aluminum oil pan.