Ngk 4554 Racing R5671A-8

Ngk Racing Series Plugs Are Engineered To Withstand The Harshest Engine Conditions. Special Insulator Nose Configurations Improve Throttle Response Corrugated Ribs Preventflashover Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength And Better Heat Transfer Copper Core Aids In Heat Removal Triple Seals Prevent Leakage Shell Thread Size 14Mmthread Pitch 1.25Mmseat Type Gasketresistor Noreach 19Mm (3/4)Hex Size 5/8 (16Mm)Terminal Type Solidoverall Height Isogap .031 (0.8Mm)Center Electrode Material Nickeltype V-Cutsize 2.5Mmprojection Non-Projectedground Electrode Material Nickeltype Standardquantity 1Specifications Torque Specs Cast Iron 18-25.3 Lb. Ft. Aluminum 18-21.6 Lb. Ft.Brand Ngkheat Range 8