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gsmeier · 06-12-2015, 08:41 AM

Thanks for the help!
The 401 GMC v6 is in a 1952 Diamond T fire engine. The engine is a super mega tight fit, and you cant see any casting #'s. That's why I was hoping to ID by serial #.
The 6066GMCguy I tried to contact, but to no avail.
There is NOT a M next to the serial #. M= Magnum motor, mine is not.
Since it isn't in a GMC truck, the V.I.N. # on the Diamond T cab doesn't give any specifics for the engine.

Any more help would be greatly appreciated.
If I got a mirror on a stick, where would I look for casting #'s specifically on the block?
Would they be stamped on like engine serial #'s, or are they raised #'s on the outside of the block?
Would they be on drivers side up high, passenger side down low, etc?

Thanks in advance!
Have a great weekend!

06-12-2015, 08:41 AM	#8
gsmeier Registered User Join Date: Jun 2015 Location: sandy, Oregon Posts: 7	Re: GMC V6 engine info Thanks for the help! The 401 GMC v6 is in a 1952 Diamond T fire engine. The engine is a super mega tight fit, and you cant see any casting #'s. That's why I was hoping to ID by serial #. The 6066GMCguy I tried to contact, but to no avail. There is NOT a M next to the serial #. M= Magnum motor, mine is not. Since it isn't in a GMC truck, the V.I.N. # on the Diamond T cab doesn't give any specifics for the engine. Any more help would be greatly appreciated. If I got a mirror on a stick, where would I look for casting #'s specifically on the block? Would they be stamped on like engine serial #'s, or are they raised #'s on the outside of the block? Would they be on drivers side up high, passenger side down low, etc? Thanks in advance! Have a great weekend!