MLS Head Fits 1963-2001 Ford 289,302,351W 4.030 Inch Bore Mr GasketOur unique Multi Layered steel head Gasket embossment formation process optimizes the embossment radius, reduces stress points, enhances Gasket conformability, and provides uniform clamp load distribution. This all results in superior surface contact between block and cylinder head. All head Gasket layers spacers go through an additional process to significantly reduce forming induced stress. Advantages are reduced brittleness in material, increased