Add horsepower and get superior protection for your GM LS stroker engine with Mast’s all-new Black Label windage tray. The custom engineered contours optimize oil return to the sump while providing optimum protection against oil splashback. The Mast Black Label windage tray is ideal for racing or street/strip applications. The windage tray clears up to a 4.250” stroke crankshaft with H-beam connecting rods, is compatible with multiple pickup tubes, and accepts factory GM windage tray nuts. Each Mast Black Label windage tray includes a black oxide finish for long oxidation free life and installation instructions.
For LS oil pans other than Gen 4 use MTM401-015