10.5mm high performance racing spark plug wires, universal set for SBC & BBC Chevrolet engines. Ready for installation straight out of the box. Electronic ignition HEI plug wires with 90-degree boots on both ends. Designed to deliver improved spark delivery for enhanced engine performance. Part number: SP10-390-1010/350383454 Fits: - AM General Hummer 5.7L V8 (1995–1996) - Isuzu NPR 5.7L V8 (1992–1994) - Chevrolet 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) - P20 5.7L V8 (1988–1999) - R1500 Suburban / R2500 Suburban / R3500 / V1500 Suburban / V2500 Suburban / 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 Suburban / R20 / R20 Suburban / V10 Suburban / V20 Suburban 5.7L V8 (1988) - C3500HD 5.7L V8 (1991–1993) - C1500 Suburban / K1500 Suburban / K2500 Suburban 5.7L V8 (1992–1993) - GMC P2500 / R2500 5.7L V8 (1888–1989) - Jimmy / R1500 Suburban / R2500 Suburban / V1500 Suburban / V2500 Suburban 5.7L V8 (1988–1991) - 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) - C3500HD 5.7L V8 (1991–1993) - C2500 Suburban / K1500 Suburban / K2500 Suburban 5.7L V8 (1992–1993) - Yukon 5.7L V8 (1992–1993) Color: Red + Black Material: Silicone Package Contents: 9 x Spark Plug Wire Note: This package includes only the spark plug wires. Other items are not included. Note: Lighting and display settings may cause slight variations in color appearance. Measurement may vary by +/- 1–3 cm.