Specifications

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engine conversions (1987 & newer)
E. Radiator Clearances: Proper spacing and centering of the fan with the radiator
is necessary for optimum cooling. If you are having a problem in this area, an alternative
is an electric cooling fan. These fans are popular for engine conversions, since they can
be mounted on the front or backside of the radiator and don’t require engine placement
considerations when using an engine-driven fan.
F. Exhaust Manifold/Header Clearance: If headers are planned for the vehicle,
it is best to purchase them before the installation of the engine. Although we make
headers for several different applications, a perfect fit can never be guaranteed. When
locating the engine, have the headers or stock manifolds in place and check the following
for clearances: firewall, brake & clutch pedals through travel, steering box or linkage,
body & frame, heater/defroster, and battery. When placing the engine into position, be
sure and have your engine exhaust system mounted on the engine. This ensures all proper clearances are maintained.
I. Oil Filters: Oil filters can be a real problem especially on Ford conversions. The filter on Ford engines is locate up front on
the driver's side, and this can interfere with the stock steering or suspension components. If additional clearance is needed, we
suggest a remote oil filter. We offer remote oil filter kits for most engines.
J. Motor Mount Installation: The motor mounts we manufacture are designed for specific applications, along with some
universal applications. Some are a bolt-in style, while others require welding. The universal mounts are designed to fit a variety
of frame widths. The channels that extend to the block are drilled in 1” increments, allowing choice of engine placement. In some
applications you may be required to elongate one or both sides of these mounts for bolt hole alignment.
“L” brackets on weld-in mounts should be welded entirely around the perimeter. All welding should be done by a certified welder.
When using a double donut design mount, make sure that the donuts properly index to the “L” bracket and the bolts are properly
tightened. Mount bolts should be checked periodically.
Once the engine has been selected, you will now need engine mounts. We offer several combinations that will fit Ford, Chevy, Dodge,
and Buick blocks. On most Ford and Chevy applications, we standardize our mounts by using a special dual rubber donut, locked
together with special hardened bolts. This combination offers a positive means of securing the engine for the most severe offroad
conditions.
Most of our mounts are universal and can be adjusted to accommodate the best possible engine location, while others are very
specific and offer no alternate for changes. Our universal Chevy and Ford side mounts are the most popular style for Jeep engine
conversions. The mounts are furnished so that they can be either welded or bolted into position, and are fully adjustable so that
the engine can be offset.
The universal mounts are now available in two styles; one for the Jeep universals, and one for the wider framed vehicles that will
fit up to 30.500" frames. We also offer a saddle-type mount for Chevy engine conversions that works well for vehicles with frames
from 25" to 30". In the Buick V6 category, we also offer a universal Buick V6 engine mount that utilizes our double donut design and
is fully adjustable, similar to the Chevy and Ford engine mounts.
In conjunction with all engine mounts, you will need to use a rear crossmember mount. This is usually the same mount with a new
location adjusted to the new engine position. Two mounting points are all that is ever required with most installations. This will
allow for plenty of engine flexibility and will eliminate transmission and engine vibrations.
We have been doing engine conversions for over 34 years . We’ve learned the hard way to count only on top-quality & proven design
installations. Our mounts are secured with a 5/8” diameter bolt between the engine brace and frame bracket. No rubber vulcanization
failure will let you down. To assure that you have the premier engine mounts that we offer, make sure our name is on the box. Do
not accept look-a-like takeoffs. We are the “4-Wheel Drive Experts” and have the quality to prove it.
K. YJ Steering Shaft and Mounting upgrades: The stock steering shaft normally does not present any clearance issues
with new engines. We have found that as these Jeep get older, the stock steering shaft does develop end play. We now carry heavy
duty replacement steering shafts for Jeep YJ’s. Jeep’s original steering shaft assembly was not designed for the added stress of
body lifts and oversize tires. We carry the Borgeson’s replacement assembly’s which have a telescoping shaft with two precision
needle bearing u-joints. The steering assembly is easy to install with common hand tools. Once installed, you will experience much
tighter and more responsive steering.
P/N 716871 YJ STEERING SHAFT POWER & MANUAL BOXES
Steer your Jeep YJ easy without interference. This new mounting plate moves the YJ steering box 1” forward, increasing the clearance
between the tie rod and drag link. This provides more clearance making it less likely to have steering bind. This mounting plate
is made with 1/2” steel for strength and reliability. P/N 716855