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  1. #1
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    Josh
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    Default Engine Swap Wiring Harness Q's

    Swapping a Caprice '94 LT1/4L60E into a '53 Chevy truck. Harness was butchered. Went to Pick-N-Pull and got a complete harness from a '96 Roadmaster.

    According to LT1Swap.com I can interchange harnesses and PCM's. The PCM being used is the one from the '94.

    So, biggest question, is - can anyone provide a layout of what connectors are for what on the '96 harness? I'm guessing I'll need to change some connectors. I have it laid out across the engine with the obvious connections made and plugged in at the transmission.

    Thanks for any help. New to LT1's.

    Josh Hucks

  2. #2

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    Biggest issue off hand I can think of is the 96 PCM will be looking for a crank sensor that is not there on the 1994 motor. I don't think it will cause major issues outside of a SES light.
    Correlation does not imply causation.

    Una salus victis nullam sperare salutem

  3. #3
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    Default

    He indicates he is using the 94 Caprice PCM.

    Shoebox has a detailed, labeled photo of a 95 F-Body harness. Doubt the Caprice is the same, but here's the link:

    http://shbox.com/1/harness.htm

    94 Formula A3+1: 381ci forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / Comp Cams solid roller / TH400+GearVendors OD / 4.11's/Strange 12-bolt / 300-shot (dry) N2O / Spohn Suspension / 6-pt roll bar /AutoMeter instrumentation / MoTeC M48 Pro engine management system /a few other odds 'n ends.

  4. #4
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    Default

    Thank you, I will keep trying to research. May just hold out for a ‘94 harness.

  5. #5
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    Shaun
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    Quote Originally Posted by Jhucks03 View Post
    Thank you, I will keep trying to research. May just hold out for a ‘94 harness.
    96 harness will plug right into a 94 pcm, pcm connectors are the same. you will just have unused stuff (rear o2's, crank sensor, different coil connection)
    2015 Camaro 2SS 1LE

    1989 Camaro RS - Le2 H/C, SBE, TH350 swap

    The wrench/driver for LTConvert's 94 Z28- Ellwein 383/LE Trickflows/ P600B/ CPT Pro Race 4L60E/Pro Torque 3200
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