50-53 Mercury Flahead ID

[38 coupe]

From the pictures it looks like you have a mostly Mercury engine. The cylinder heads and water pumps do not match, the water pumps are 50-51 Mercury and the cylinder heads are 52-53 Mercury. Measuring the stroke will tell you if you have a Mercury crankshaft or not.

For reference, here are pictures of a typical flathead that has had parts swapped around to fit various vehicles or for whatever reason over the years. Parts swapped engines are more common these days than mostly original engines, but may people expect to identify their engines based on exterior parts.

This engine is an 8BA era block, has 49-51 Mercury cylinder heads, 48-52 truck crank pulley and water pumps, 49-53 Ford intake manifold, and a 49-51 Ford passenger car oil pan. It also has a cast rear cover with 1CM markings. It doesn't matter what vehicle this assembly of parts came from, it matters what condition the difficult to find parts are in, in this case they are the block and the Merc crank.