Tomei Headgasket - Nissan SR20DET - 87mm 1.2mm Thick - ** July 4th ** 0 9 01 Jul 2021 15:27 Enjuku Racing This SR20DET head gasket is all metal. Manufactured by the race engineers at Tomei, The Engine Specialist Available in a wide range of thicknesses and bore sizes for all horsepower applications. For the stock 86mm bore, order the 87mm gasket. For e..Price: $99.00