'65 Stamp Pad

[Chris H.]

Ok Pad Gurus, what are your thoughts on this one? Thanks in advance. Chris

6A193E8B-62AF-416E-B6FD-0C84D980B01E (2).jpg

[Arland D.]

Re: '65 Stamp Pad

No guru here but the initial knee jerk visual reaction is that if someone wanted an HI suffix to look like an HN suffix, the left leg of that N is wide and deep enough to do the job. On the other hand, maybe there are photographs of other pads that look just like this one. Perhaps other members can provide some pictures.

[Mark F.]

Re: '65 Stamp Pad

Hi Chris - No guru here, either
but I don't see broach marks under the "H" and "N" and maybe even the "3".

looks like a partial grind out.
question is, was it a factory grind out? or otherwise?
Mr. Grenning would probably know

[Michael G.]

Re: '65 Stamp Pad

I'm sure that there's a story behind that pad, but, it's difficult to tell what happened when. With that said, let's, for a moment, ignore the very deep, bungled series and concentrate on what's under it. It looks like some very selective grinding took place, across the entire series, deeper near the right end. This would effectively remove the original date stamp and the suffix, except that there seems to be the remnants of an"F" and an "N" that remained after the deliberate grind off. Certainly, some of the broach marks on the left are original. And the remaining, very light double-stamping present shows a slightly angled stamp that starts with "F" and ends with "N". Could be that the date was originally stamped wrong and they ground it off.

I'd vote for a factory grind-off and really clumsy re-stamp. Seems that I read here that a lot of '65 375 HP engines exhibit a screwed up suffix, for some reason that had to do with when the suffix was added. It could also be evidence of tampering, (there will be a point at which every '65 has either 375 or 425 HP) though, if I were going to tamper, I'd do a better job...

[Mike M.]

Re: '65 Stamp Pad

i never realized that 65 chevy SBCs had so many suffixes. actually, looks like the second alpha in the suffix could have been an A all the way thru Z. of course, not all 65 corvette 870 blocks would have been stamped will all the various 2nd alpha suffixes. i have a 65 FI with TI and its HN looks nothing like the OP's stamp pad photo. most grind-outs i've seen that i was convinced were factory grind outs, appear to have the offending suffix ground out with a rotary file, leaving a deep concavity in the suffix area of the machine assembly stamp pad. this pad in question appears to have used a sanding disc to remove the offending suffix. i'm not too crazy about the pad in question. mike

[Michael G.]

[Dave S.]

[Kenneth B.]

Re: '65 Stamp Pad

I’m not a stamp pad expert but how do you properly evaluate a pad without seeing the entire pad including the VIN deravitive. Lots to observe by seeing both stampings together.

Because if the build stamp is hockey you dont need to see the VIN #. Agree with Mike not a factory grind out but someone stamped a N over the I and lightly sanded that area.

[Dave S.]

Re: '65 Stamp Pad

Because if the build stamp is hockey you dont need to see the VIN #. Agree with Mike not a factory grind out but someone stamped a N over the I and lightly sanded that area.

[Michael G.]

[Dave S.]

Re: '65 Stamp Pad

[Chris H.]

Re: '65 Stamp Pad

Ok, here’s the entire pad. 3D682417-7127-44B7-9635-A2D9F2890E57.jpg

[Mike E.]

[Michael G.]

[Jack M.]

Re: '65 Stamp Pad

I'm certainly no expert... that said, has anyone else noticed a possible misaligned 'N' that was originally there?
Hoping this quick animation might work here (5-sec delays for the transition):

F0513HN.gif