ACCEL 8197 U-Groove Spark Plug Header Plug Features: Header-Box U-Groove Ground Electrode Five-Rib Aluminum Insulator Copper Core Nickel/Chrome Steel Electric Heat Seal Copper-Glass Gas-Tight Seal Less Flame Dissipation Height: 8.30 Width: 3.60 Length: 1.20 Weight: 1.16 lbs Fitment: 1987/GMC/Jimmy/Sierra Classic Sport Utility 2-Door/5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987/GMC/Jimmy/Base Sport Utility 2-Door/5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987/Chevrolet/Camaro/Z28 Iroc-Z Coupe 2-Door/5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987/Chevrolet/Camaro/Z28 Iroc-Z Convertible 2-Door/5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^^1987/Chevrolet/Camaro/Z28 Coupe 2-Door/5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated::0.035 in. Plug Gap^...