BESTgasket is the world's premier manufacturer of gaskets for vintage and classic American cars and trucks. BEST Gasket complete/full gasket set for 1937-1940 Ford 136ci "17-stud" flathead V-8 engine. P/N RS520G. This engine is referred to as a "17-stud" engine because each head requires 17 studs to fasten to engine block. BEST Gasket is the leading name in sealing performance in the restoration industry.