putting a LT1 in a 67 chevelle ss


micali
09-11-2007, 06:25 PM
I have a '97 LT1 motor and tranny the computer, sensors and wires. I am wanting to put it into this car. What will it take to do this swap and get the motor to start?

taillight
09-12-2007, 08:06 AM
It will work if you have the skill to hook it all up.

micali
09-12-2007, 06:29 PM
what I am asking is how to do it?

mdcamaro
09-15-2007, 04:00 PM
http://www.hotrodlane.cc/New%20LT%20Tech%20Page/LT%20links%20page.html#installs

Here are the best articles I have found.
Good Luck Jim

Blue Bowtie
09-17-2007, 10:55 PM
For something closer to your era, these are from a '72 Chevelle:

Removing the dash to rewire and to mount the ECM:
http://www.wwdsltd.com/files/DashRemoved.jpg


Install the wire harness bulkhead seal:
http://www.wwdsltd.com/files/WireHarnessCowlSealSm.jpg


Provide for the harness in the engine bay:
http://www.wwdsltd.com/files/WireHarnessBushingSm.jpg


Fit up the ECM/PCM:
http://www.wwdsltd.com7/files/ECMTrialFit.jpg


Remove the resistance wire from the original bulkhead connector and wire with AWG12:
http://www.wwdsltd.com/files/BulkheadConnIgnWireRepl.jpg


Reseal the bulkhead connector:
http://www.wwdsltd.com/files/BulkheadConnResealB.jpg


Trial Fit the ECM harness:
http://www.wwdsltd.com/files/72A-BodyHarnessTrialSm.jpg


Make adjustments, connector changes, and final fit the harness:
http://www.wwdsltd.com/files/72A-BodyECMHarnessFitment.jpg


Remember to install a "Check Engine" lamp:
http://www.wwdsltd.com/files/72ChevelleDashWarnringLamps.jpg


Enhance the OEM fuse panel for the additional circuits:
http://www.wwdsltd.com/files/EFIFusePanelInstalledSm.jpg


Reassemble the dash:
http://www.wwdsltd.com/files/72A-BodyDashAssembledSm.jpg


Mount and wire the fuel pump:
http://www.wwdsltd.com/files/RetrofitEFIFuelPumpInstallation.jpg


Install the new fuel supply and return lines:
http://www.wwdsltd.com/files/RetrofitEFIFuelLineInstallation.jpg


Install a relay panel for the pump and electronics (Sorry, no photo);


Connect the sensors, and start programming:
http://www.wwdsltd.com/files/1972ChevelleTPI.jpg


For the greatest ease, you might want to consider running the LT1 in batch-fire mode, and possibly alter it for a regular distributor and eliminate the Opti (there are several places which will modify the intakes for you).

ted-c
12-05-2007, 10:09 PM
Hay Blue Bowtie, That might be a '72 Chevelle but the motor sure ain't an LT1.
That's a Tune Port. And there is big difference in the two, both physicaly and electronicly.

highlandlake
12-06-2007, 08:02 PM
Bowtie's reply is very educational to someone interested in the general steps to convert to a newer generation engine. It's not for the Saturday driveway mechanic to do in a day or two. It requires fabrication skills, electronic skills, and tools to match.

My retinas still hurt from seeing a 'Check Engine' light in one of these fine old cars.

MrPbody
12-07-2007, 08:27 AM
Permit me to ask "Why?" Installing a later model small block in a big block car seems counterproductive (never send a boy to do a MAN'S job...). It will also kill the collector value of the car. Is the 396 gone or destroyed? The LT-1 is worth enough to sell and aquire the right stuff for the car.

Just asking...

Jim

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