Advance Adapters 716131-V - Manual (Page 2)

JEEP 727 & 999 TORQUEFLITE TO CHEVY
GEN III ENGINES (REPLACING AMC 6 CYL.)
ADVANCE ADAPTERS INC. P/N: 716131-V
P.O. Box 247, 4320 Aerotech Center Way
Paso Robles, CA 93447
PAGE 2 OF 4
Telephone: (800) 350-2223 Fax: (805) 238-4201 Page Rev. Date: 07-21-09
SPECIAL NOTE: The components packaged in this kit have been assembled and machined for specific type of conversions. Modifications to any of the components
will void any possible warranty or return privileges. If you do not fully understand modifications or changes that will be required to complete your conversion, we strongly
recommend that you contact our sales department for more information. This instruction sheet is only to be used for the assembly of Advance Adapter components.
We recommend that a service manual pertaining to your vehicle be obtained for specific torque values, wiring diagrams and other related equipment. These manuals are
normally available at automotive dealerships and parts stores.
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The photos (right) show the stock AMC engine
and stock flexplate. The measurement is
taken from the transmission side of the flex-
plate to the back of the engine block. Our
adapter kit will make the GM block look
basically the same as the this AMC setup. It
will also give you approximately the same
measurement.
2. The adapter plate can now be bolted to
the new engine. Be sure to use the stock GM
dowel pins for alignment between the adapter
plate and engine block. The two stud bolts that
are provided must be installed into the engine
block just below the two stock dowel pins.
After the adapter plate is installed, the lock
washers and nuts can then be installed through
the small access slot.
Due to the close proximity of the AMC and GM bolt patterns
on our adapter plate, you will be required to adjust two holes
on your stock transmission. The two holes in the transmission
bellhousing (photo below) will need to be elongated slightly
with a rat tail file to match our adapter plate.
Two special dowel pins have been furnished for aligning the
transmission to the adapter plate. These dowel pins provide must
be installed into the Torqueflite transmission. These pins have a
slight diameter change of only .003". The larger diameter must be
lightly tapped into the transmission case ( care should be taken to
tap these in as straight as possible. The small end of the dowel pin
will protrude out of the case for indexing into the our adapter plate.
The new Vortec flexplate needs to be installed onto the recessed .400”
engine crank, This flexplate has been modified to include the standard
TH350, 700R and TH400 torque converter holes. The flexplate is dished to compensate for the recessed crank. A new
crank support bushing has also been included to compensate for the Vortec crank location. Once the bushing is installed
the new aluminum torque converter ring will index into the bushing.
The 6.0 engine with cast iron heads and the 4.8 engine coupled only to a stock manual transmission in 1999 to 2003 do
not have the recessed crank. Your stock flexplate must be modified on these blocks.