1946 "F". Block

[gonzomn]

I am going to look at a 36 coupe. The add says "The block is a 1946 "F". It looks like a 59AB, but it has a factory 4 inch stroke and 3 5/16 inch bore. This is not the Mercury crank, but a ford factory crank......very hard to find. Not only that, the block was factory ported."

I have no idea if this is accrate or what. Does anyone know anything about these engines?
Also, how could you identify one?

Thanks,

Scott

[1937pickup]

Do you mean factory relived? I have one of those in my 37 pick up.

[mtflat]

No, it's not accurate cause it never existed as factory.

[gonzomn]

In a different ad, he called it a 59L block

[flatheadfan]

The 59L block is a good factory engine. I have one. However, the one I have has a standard 3-3/4" stroke, 3-3/16" bore NOT the bore and stroke you indicated. It also has a factory relief.

My understanding this engine was a late WW2 issue and ultimately found its' way into standard '46 production after the War. The block itself is suppose to have a higher nickel content which contributed to its' hardness and its' ability to withstand a 3-7/16" bore better than the standard 59 engine. Needless-to say, these engines are getting hard to find!

Tom

[tubman]

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Anyone remember a few years ago, there was a guy trying to pass off a 1948 F-1 with a McCollough super charger and other goodies as a "Special Factory Prototype". Perhaps the same guy?