10.5mm high performance racing spark plug wires, universal set for BBC Engines. Ready to install straight out of the box. Electronic ignition HEI plug wires with 90-degree boots on both ends. Designed to deliver improved spark delivery to your spark plugs for enhanced engine performance. Part number: SP10-390-1010 / 350383454 Fits: - AM General 5.7L V8 (1995–1996) - NPR 5.7L V8 (1992–1994) - Blazer / K3500 5.7L V8 (1988–1993) - C1500 / C2500 / G10 / G20 5.0L / 5.7L V8 (1988–1993) - K2500 5.0L V8 (1988–1993) - K3500 5.7L V8 (1988–1993) - 5.7L V8 (1988–1999) - R1500 / R2500 / R3500 / V1500 / V2500 / V3500 5.7L V8 (1989–1991) - G30 / P30 5.7L V8 (1989–1993) - K1500 5.0L / 5.7L V8 (1989–1993) - P30 5.7L V8 (1989–1993) - R10 / R20 / V10 / V20 5.7L V8 (1988) - C3500HD 5.7L V8 (1991–1993) - C1500 / K1500 / K2500 5.7L V8 (1992–1993) - P2500 / R2500 5.7L V8 (1988–1989) - G3500 / K3500 5.7L V8 (1988–1993) - G2500 / K1500 / K2500 5.0L / 5.7L V8 (1988–1993) - R3500 / V3500 5.7L V8 (1989–1991) - P3500 5.7L V8 (1989–1993) - C2500 / K1500 / K2500 5.7L V8 (1992–1993) Color: Red + Black Material: Silicone Package Contents: 9 x Spark Plug Wire Note: This package includes only the items listed above. Other products are not included. Please note that lighting and monitor settings may cause slight variations in color between the image and the actual product. Measurement may vary by up to ±1–3 cm.