512 MN Block - Legit or Re-stamp
 

This block is listed on eBay as a legitimate "MN" block. The stamping appears rather deep but fairly legit to me but I am not an expert.

I would like to hear opinions on this one.

http://i.ebayimg.com/15/!CC9Bb7gBmk~...YnePg~~_12.JPG

Re: 512 MN Block - Legit or Re-stamp
 

I can't see from the picture but the pad is pretty pitted so much that the broach marks are gone. Look into the depressed areas of the stamp to see if the pitting is also present, If not I'd be suspect.

Rich

Re: 512 MN Block - Legit or Re-stamp
 

If it is a true MN block, shouldn't it have a vin by the oil filter?

Re: 512 MN Block - Legit or Re-stamp
 

What would it have been installed in? The very first Yenkos have much later engine dates. This would be the earliest MN engine by a wide margin.

Re: 512 MN Block - Legit or Re-stamp
 

I think it's fake. The numbers and letters aren't even close to the picture I have of a real MN block. Compare the &quot;T&quot;, &quot;0&quot; and especially the &quot;M&quot;. They are also too straight and too deep plus as Rich stated, the broach marks suck. [img]<<GRAEMLIN_URL>>/thumbsdown.gif[/img]

Kurt

http://i300.photobucket.com/albums/n...uff/COPO-9.jpg

Re: 512 MN Block - Legit or Re-stamp
 

I emailed him for the VIN and the reply was 19N56737?

http://cgi.ebay.com/ebaymotors/ws/eB...m=190491686975

Kurt

Re: 512 MN Block - Legit or Re-stamp
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: William</div><div class="ubbcode-body">What would it have been installed in? The very first Yenkos have much later engine dates. This would be the earliest MN engine by a wide margin. </div></div>

According to a site I just looked at the first 427 Camaro VIN was 578xxx. [img]<<GRAEMLIN_URL>>/dunno.gif[/img]

Re: 512 MN Block - Legit or Re-stamp
 

Not sure if it means anything but all the blocks he is selling seem to have pitting on the pad with uneffected stampings except a 70 396 block he has for sale. The VIN stamp on the DZ block looks very suspect.


Jason

Re: 512 MN Block - Legit or Re-stamp
 

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 69 Post Sedan</div><div class="ubbcode-body">I think it's fake. The numbers and letters aren't even close to the picture I have of a real MN block. Compare the &quot;T&quot;, &quot;0&quot; and especially the &quot;M&quot;. They are also too straight and too deep plus as Rich stated, the broach marks suck. [img]<<GRAEMLIN_URL>>/thumbsdown.gif[/img]

Kurt

http://i300.photobucket.com/albums/n...uff/COPO-9.jpg </div></div>

In your known good &quot;MN&quot; block I notice that the &quot;0&quot; has straight sides with only the top and bottom edges being rounded off. In the eBay one, the entire number is rounded.
As well, all the fonts appear just a little off without even considering the VIN date issue.

Re: 512 MN Block - Legit or Re-stamp
 

The center peak of the letter M on the ebay block comes all the way to the bottom. The center peak on the letter M on 69PostSedans's block doesn't.

Re: 512 MN Block - Legit or Re-stamp
 

Waaay deep and strange font, throws a red flag!

Re: 512 MN Block - Legit or Re-stamp
 

I agree on all accounts..looks homemade to me.

Re: 512 MN Block - Legit or Re-stamp
 

http://i617.photobucket.com/albums/t...tn_mnstamp.jpghttp://i617.photobucket.com/albums/t...nblock2002.jpghttp://i617.photobucket.com/albums/t..._copostamp.jpg

additional stamps for comparison

Re: 512 MN Block - Legit or Re-stamp
 

It also had a 3 bounce image.
PJ

Re: 512 MN Block - Legit or Re-stamp
 

STAY AWAY!!!!!!

Re: 512 MN Block - Legit or Re-stamp
 

Either someone thinks that they can pass that off for a huge pay day to some uneducated buyer or they dont realize that anyone that even knows what the &quot;MN&quot; block is will certainly validate it before buying. Now they have a 512 block that needs to be decked to get rid of that bogus stamping.

Thanks for all the images for comparison - once again the yenko.net community proves thier knowledge and abilities.

Re: 512 MN Block - Legit or Re-stamp
 

as deep as that is stamped i dont think that is going to go away even after decking.

Re: 512 MN Block - Legit or Re-stamp
 

Too deep to deck away.... Bummer, could have been a good replacement piece if left alone, [img]<<GRAEMLIN_URL>>/frown.gif[/img]

Re: 512 MN Block - Legit or Re-stamp
 

The engine plant had several different suppliers of those stamps. When they changed the dates, the fonts would change so you can't really compare a Dec block to a June block.
Restamp, btw. [img]<<GRAEMLIN_URL>>/smile.gif[/img]