Used Flathead Ford V8 exhaust manifold, crack free, resurfaced block flanges, two usable shorter studs.  Use with brass nuts.  Casting number highly visible, minimal erosion. 

This manifold is Ford part number 21A-9431, left side on 1942 - 1948, also fits 1948 - 1953 pick up.  

For exhaust manifold gaskets, see our Product Code 1435, Exhaust Manifold Gasket Flathead Ford. 

For tall form brass nuts for outlet, see our Product Code 1465, Exhaust Manifold Outlet Stud Brass Nut.