Fits Nissan 2.4L KD24DE 4-Cylinder. Oval Ports, 1.62 Inch x 1.61 Inch;Manufactured from “Dead Soft” (solid) .043˝ thick copper material; .051˝ embossment around each exhaust port to seal irregular surfaces. Total gasket thickness .094˝; Provides excellent sealing and durability; Conforms to and seals minor surface irregularities; For high performance street, drag race, oval track and turbocharged (extreme heat) applications;