Ultra 40 Plug Wire Set GM LS 12in 135-Degree

The Ultra 40 Plug Wire Set GM LS 12in 135-Degree by MOROSO is specifically designed for GM LS-series engine swaps and high-performance builds where space is limited. This set is ideal for those fitting an LS engine into classic cars, street rods, or performance trucks, addressing the challenges of tight engine compartments while ensuring optimal spark delivery.

MOROSO has engineered these ignition wires to eliminate the guesswork of custom wire routing, preventing misfires caused by poor conductor contact or inadequate shielding. Featuring Ultra 40 construction, these wires provide consistent, high-voltage spark transmission and superior EMI suppression, which is crucial for modern engine management and performance validation. The precision-molded 135-degree boot angle directs wires away from heat sources, reducing the risk of damage over time.

This plug wire set is essential for anyone performing an LS engine conversion, ensuring reliable ignition performance in compact engine compartments. The 12-inch wire length is optimized to eliminate slack and potential arcing points, while the core construction guarantees reliable conductivity across various operating temperatures and high-RPM demands.