F1SEBB block?

FoxChasis said:

Neither the engineering number F1SE nor the date code will tell you what the engine is "out of." That engineering number is a common 1991+ block that was used in 91-95 Mustangs, 91-93 Thunderbird and Cougars, 91-97 trucks and vans, boats, etc. The date code is when the block was cast at the engine foundry. It was built later at an engine plant and installed even later at an assembly plant.

You will need the partial VIN from the block, if there is one and it it legible, if you want to get specific about what the engine is originally from.

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