Performance Intake and Exhaust Fits 1965-1987 Ford 240/300 Inline 6-Cylinder Mr GasketManufactured from high temperature composite exhaust material. Provides maximum torque retention to eliminate Gasket failure. Can be trimmed if necessary for modified port applications. Precision die cut for an excellent fit. For original equipment replacement, high performance street, drag race and oval track. Manufactured from high temperature acrylic blend exhaust material. Provides excellent sealing and durability. Can be trimmed if necessary for