TR Custom Parts
141 Ezra St
North Haven, CT 06473
We do all correspondence by email!
AC RELATED PRODUCTS
AC Cowl Panel
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LED Headlight Kit
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4" One Piece Air Inlet Kit
FLUID / COOLING
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TR-6 Ignition Plate
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SUSPENSION / MOUNTS
Rear Coilover Kits
QA1 Regular Shocks
QA1 Coil Over Shocks
Turbo Oil Drain Kit
Effective IMMEDIATELY. Due to the
outrageous shipping charges these days we will not be shipping to Hawaii or Alaska.
If you really want something you will have to contact us first and we can look
into how much it will cost.
EMAIL US TO SEE IF MOTOR
MOUNTS ARE IN STOCK, MANUFACTURER IS TRYING TO KEEP UP WITH DEMAND.
We have designed and produced a new motor mount for GM G-Body vehicles
from '78-'87, replacing GM part numbers: 25504647 left and 1258718
right. These are more commonly referred to as "Poly Motor
Mounts", because they have Polyurethane bushings incorporated
into their design. These new mounts have proven to be
indestructible and are stronger than even solid type mounts. The Poly mounts are designed to benefit
the every-day driver as well as the full time racer, at any
performance level. The mounts now have a new design cross-pin
being used in them. Previously the pin was round and would
contact the frame pads once the engine was lowered into position
determining the height of the engine. The new and improved pin
design has a milled flat on one are which allows a and lowered height
to be obtained on installation if needed. The pin can be rotated so
the flat of the pin will contact the frame pad and drop the engine approximately
1/8" to 1/4".
|'82-'87 Buick Regal (GN, GN-X, T-Type, WE-4)
NOTE: We have THREE different designs for the above applications.
The "1ST DESIGN" will ONLY
fit Buick production 3.8's.
Part # HR0101 is for a pair of
Poly motor mounts
Part # HR0102 is for a the drivers side
Part # HR0103 is for a the passenger
For most street cars/daily drivers, upgrading
the drivers side along with a GM passenger mount in very good
condition will work fine. I do however always replacing both
sides so your engine will sit level, replacing just the driver side
while keeping a worn out original passenger side mount may lead to
some downpipe clearance issues. For engines over approx. 500 HP, a
pair is recommended for the best possible performance, as well as
safety. If there is minimal clearance around the engine and
excessive movement could cause problems, then a pair will also be much
more helpful in keeping the motor in place. If an upgrade to a NON-Buick
production 3.8 block is in your near future, it would be wise to
consider our "second design" below.
Our "2ND DESIGN" will fit
Stage I & II blocks, and ALL GM production V-6's
|Part # HR0104S is for a pair of the
2nd design Poly
The second design is basically the same as the
first design, they use the same grade of poly as the first design
mounts but have added clearance machined into them for proper
fit against the sides of the Stage 1 & 2 blocks.
All styles of mounts are made from all new parts
and materials, and assembled with precision CNC machined jig
fixtures. To ensure the highest degree of quality, parts are
laser cut and manufactured to precision tolerances with CNC
equipment. They are welded with a state-of-the-art high
frequency mig welder and include grade 8 (or better) hardware.
A 3/8" hex bit driver for use on a ratchet will be needed to
install while the motor is in the car.
Our mounts are MUCH stronger than stock, without any of the problems associated with solid mounts.
There are NO negative effects to the block or knock sensor from
using our Poly mounts. They include the highest
quality polyurethane bushings from a well known manufacturer that
have been modified to be used with our design. They are soft
enough to allow a slight amount of movement which reduces
bind/stress, and also stiff enough to keep the engine where it is
designed to be under full power. There is also added clearance
over the stock mounts for aftermarket oiling systems, and they
should NOT need any additional modifications.
Testing with a 10.70's Buick GN in race trim has
shown over 75% less flexing than the stock mounts at 5 psi boost
(300-350 HP) brake torque. Another benefit we found was that
the engine was shaking noticeably less at an idle.
We also tested them at 30+ psi boost on many 1/4 mile passes, with
1.40 - 1.46 60 foot times, all without any engine anchor. This
was with a production block and approx. 3500 Lbs car/driver.
They have been low 9's on a customers car with a stage block
using a transbrake, with no engine anchor or mid-plate. They
are currently being used on many 9 sec cars, some 8 second cars and
many milder daily drivers with great success.
On an '87 Buick GN, the mounts can usually be changed
with the motor still in the car somewhat easily, depending upon
exact upgrades. They come fully assembled and have a black
finish with new Allen head bolts (actually stronger than grade 8)
and lock washers for bolting up to the block. These have also
been used to mount Turbo V-6's into several different non-Buick
makes/models. Some fabrication of the frame pad and/or
cross-members will obviously needed, depending upon applications.
There will be a One Year limited warranty on the
mounts against workmanship and/or breakage, limited to the
replacement of the mount. Details will be included with each
purchase, along with helpful tips for an easy installation.
Because of the quality, design, and workmanship, the warranty
applies even under extreme racing conditions. For more
detailed information, please visit the other sections at the top of
EMAIL US ON AVAILABILITY BEFORE ORDERING!
|HR Motor Mounts
$139 and up|
Please note that these sell out almost immediately as
batches are made. To ensure you get yours timely I suggest
ordering to get on the reserve list. These are made by a supplier who is
a one man operation. Can usually ship within 2-3 weeks depending
on where the latest batch is in process. Thanks.