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Review this installation guide carefully before
beginning installation.
Use our search bar feature, and enter your engine's
part number to find the list of recommended add-
on parts, as well as specifications for your engine.
Remove your engine from its crate and check for:
a. Possible damage during shipping.
b. All parts that were ordered with your engine.
Read and follow all TAGS attached to your engine.
These are extremely important and include things
like fluid capacities and types.
Prepare a complete list of add-ons that you
will need to complete your engine installation,
including new and existing parts. Refer to
add-on recommendations for your engine at
www.BluePrintEngines.com.
Do not assume everything from your old engine is
identical to the new one. This is ESPECIALLY TRUE
of LS retrofit swaps.
Determine what you need to finish your installation
in your application. This could include items such as:
a. Headers
b. Engine mounts, transmission mounts, etc.
c. Adapters for sensors, transmissions, etc.
See pages 4-6 for some common swap parts
and tips.
Install engine in engine bay and plumb/wire in
fuel, ignition, ECM, TCM (if using 4L60E, 4L80E),
etc.
If your engine was purchased and shipped with a
BluePrint Engines ECU/Harness package, it has
been loaded with a start-up tune for your engine.
Some vehicles may operate fine with the included
calibration, but many will require additional
tuning once installed in your vehicle as tire size,
vehicle weight, gearing, transmission type, etc.,
will all affect drivability. Any concerns dealing
with drivability, or driveline damage, without
being tuned by a professional, are not covered by
BluePrint Engines warranty.
An electronic version of the crate engine
controller instructions that should have also been
provided with your engine can be found here:
https://blueprintengines.com/pages/tech-tips
and click on "LS Controller PDF" at the bottom of
the page.
If your engine came from BluePrint Engines
equipped with an automatic transmission, the
MSD Atomic controller instructions should have
been included with your package, or an electronic
copy is available here:
https://blueprintengines.com/pages/tech-tips
and click on the "MSD Transmission controller
PDF tab.
We highly recommend that you consult a
chassis dyno shop with LS tuning software
such as HP tuners, or GM Livewire once the
engine is installed. The ECU is not locked so that
professional tuners can adjust as needed.
Again, all LS retro swapped engines or engine
packages are subject to probable tuning by a
professional for your application. If your engine
comes with an ECM from BluePrint, the tune is to
be considered a start-up tune and is meant to get
the engine running.
Professional tuning is required to maintain engine
warranty!
An LS swap into an older muscle car or truck will require a great deal of supporting bolt-on equipment
and custom components that are MUCH different than a traditional SBC or BBC engine. Things to
consider and fully understand, include, but are not limited to modification or changes to your existing
exhaust, engine mounts, transmission, transmission mounts, and fuel system upgrades. This publication
is not designed to be an all-inclusive guide to installing LS engines in non-LS applications as there are
many vehicle-specific differences and many aftermarket resources for headers, motor and transmission
mounts, and other supporting equipment.
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INSTALLATION PROCESS AT-A-GLANCE
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