Engine decode help

Ok there is a local guy selling 5 440s and 1 that he thought was a 413 but casting number says can be a 413 or 426 and the stamping on the pad is all wackey.on the stamping too me i see T 41 then below that is a faint maltese cross and below that looks like either 126 or 1126 so i assume 413 TIA Name:  1217151657a.jpg
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Author: Ironram