Michigan Motorsports LT1 Optispark Vented Wiring Harness Connector | Fits 1995-1997 Camaro, Firebird & LT1 Distributor

The Michigan Motorsports LT1 Optispark Vented Wiring Harness Connector (P/N 13400) provides a perfect 24″ vented wiring extension for 1995‑1997 LT1-equipped engines including Camaro, Firebird, Corvette, and Buick/Pontiac platforms. Designed to connect the vented Optispark distributor to the main engine wiring harness, it reproduces factory wiring function for proper vapor management. This harness uses GM-style high-temp convoluted split loom and the correct manifold retaining clip so no modifications are needed. Perfect for replacing brittle originals or converting to a vented setup during rebuilds and rebuild-compatible swaps.

• Vent-Compatible OEM-Style Connector – Provides factory-style vent and electrical connection for vented Optispark distributors on LT1 engines.
• Exact OEM Fit for 1995–1997 LT1 Engines – Compatible with Camaro, Firebird, Corvette (LT1/LT4), Caprice, Roadmaster, Impala SS, Fleetwood, and other LT1 applications.
• 24″ High-Temp Wiring Length – Offers ample reach and flexibility for mounting variations in engine bays without cutting or splicing.
• Simple Plug-and-Play Replacement – Designed to directly replace your old harness—ideal when the OEM clip breaks or converting non-vented Optispark setups.
• Factory-Style Split Loom & Clip – Built using high-heat convoluted loom and original-style manifold clip to maintain OEM routing and secure fitment.