LT1 Wire Harness | LT4 Wiring

This 1994-97 Speed Scene LT1 wire harness supports either OBD1 or OBDII diagnostics, depending on the year of your ECM. The 1996-97 ECM supports faster processing speed and enhanced diagnostic capabilities.

All SSW wiring harness yield a 5 foot trunk from the right rear of the engine, to the ECM. The LT1 can accept the following transmissions: 700R4, 4L60E, 4L65E, T56 and any STD trans.

• Fuse Box
• Programming Available -10Hp Over Stock - No VATS.
• Diagnostic Capability (ALDL)
• New GM Connectors & Terminals & Seals .
• New TXL & GXL Wire.
• Gear & Tire Ratios Corrected
• Off road Calibration File
• A Company who really cares about this harness actually working.

The way we have priced out the wire harness above covers any transmission listed, at the end of the online order, you can add additional info. Please let us know transmission type @ that time.

Have a question, call / text 210-773-4550 email us at info@speedscenewiring.com