Engine Serial Number
#1
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I have a 502 gen 6 that I took to the machine shop and got back and suspect that it is not the same block that i brought in. I took the Merc serial number tag off the back before I took it in so I am wondering if the serial number on the Merc tag coinsides with the serial number that is stamped on the front of the motor. Thanks Eric
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Those are casting numbers. They won't be specific to any one block. Car/truck engines usually have a number actually stamped into the deck on the right front side. Not so in a marine application... thus the riveted on tag.
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Some blocks I was trying to ID had a stamping on a small pad in the center on the front of the block behind the circ.pump. When I checked it with the merc tag it was the same...wasn't a gen VI though