1966 stamp pad opinions please

[J W.]

Do the characters and font and broach marks look legit on this 1966 stamp pad? One photo was during the rebuild and two photos are post-rebuild.

[Gary B.]

[J W.]

Re: 1966 stamp pad opinions please

Gary, I am not sure what was done to the pad in the third photo, other than cleaning to remove grime, gasket material, etc as part of the rebuild.

[Patrick B.]

Re: 1966 stamp pad opinions please

The 6 in the Tonawanda stamping and the 4 in the vin stamp do not look typical of Tonawanda and St. Louis.

[Larry M.]

Re: 1966 stamp pad opinions please

The 6 in the Tonawanda stamping and the 4 in the vin stamp do not look typical of Tonawanda and St. Louis.

Michael:

Pat is one of the best on this subject, so take his advice seriously.

Pat does not need any support, but I do agree fully with his assessment.

Obviously, factory broach marks are also not seen.

Larry

[Mark F.]

Re: 1966 stamp pad opinions please

What is the VIN and Body Build Date for the car this engine is in (unless it's a stand-alone engine)?

[David H.]

Re: 1966 stamp pad opinions please

Orange paint images: Does water pump casting appear to stand proud of stamp pad? If so, indication of decked block.

Dave

[Roy S.]

Re: 1966 stamp pad opinions please

Patrick, called it bad machine code stamp, bad vin derivative stamp, it is not GM/UAW work from the time period.

[Michael H.]

Re: 1966 stamp pad opinions please

Michael,

I would use Al Grenning services to verify the stamp pad.

Mike

[J W.]

[Gary B.]

B3CD2C36-161F-42C9-A1EB-44B540013D1E.jpg

[Edward J.]

Re: 1966 stamp pad opinions please

I think someone like Al Greening also has a vast number of original engine stamps that may be able to verify/compare engine stamps, Mike’s engine stamp sure looks like a very aged stamp. The Stamps Gary posted is a great tool to use to see what stamps were used.

[Michael H.]

Re: 1966 stamp pad opinions please

Thank you for your responses! I thought the ‘6’ in the Tonawanda stamp looked odd too.

Michael,

Look at Gary's post of the stamps, bottom left hand side where the zero's are. That last stamp looks like a nine or it could have been used upside down as a six. So it's possible your six is a correct factory stamp used on your block. Al Grenning should have a list of engine stamp pads that match up to your engine build date that's why I would check with him. I also like the broach marks on your engine pad.

Mike

[Edward J.]

Re: 1966 stamp pad opinions please

D42A3EA7-D0AD-4A7A-842B-EC746DFD505D.jpg Here is a great paper from one Al Greening classes I went to a few years ago.sorry about the rotated pic.

[Michael H.]

Re: 1966 stamp pad opinions please

Michael,

Look at the 6 in these pictures. They are the same as yours.

https://www.angelfire.com/fl/procrastination/stampbbc.htm

Mike