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Help decoding 1968 engine code and verifying if 442?
New owner 1968 442/new to the forum. I'm looking for some help verifying if engine is original to car as told when purchased; said it was 400 cu in. Based on the research I've done for the block to be original on the pad it would read 38××××××× with the last seven matching the Vin. So Vin 344778M101339 should have 38M101339 on the block pad, correct? I think that matches though tough to read. Then looking at the heads, the code appears to be 394548 with code C; if I researched correctly those are heads for a 425 or 455 cu in though. So possibly original block with NOHs? Thanks in advance for any assistance C head? head 394548 does this equal 425 or 455? engine supposed to be 400 block stamp, a little difficult but looks to be 38 and 101339 at end..dont see the M in between but would need to clean?