B16/B18 HEAD GASKET   BORE THICKNESS PART NO. MSRP MATERIAL Φ82.5 0.7mm TA4070-HN03A $120.00 Metal 0.9mm TA4070-HN03B 1.1mm TA4070-HN03C     CROSS SECTION     BEAD TYPE RAISED TYPE     *Images are for illustration purposes only.   SEAL TYPE STOPPER TYPE   TOP SIDE   UNDER SIDE *Images are for illustration purposes only. COMPRESSION RATIO CALCULATION TOOLS