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Post Info TOPIC: 68 BEAUMONT 396 Mystery 633 stamping between suffix an vin# code please have a look at photo thanks


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68 BEAUMONT 396 Mystery 633 stamping between suffix an vin# code please have a look at photo thanks


Can anyone help or tell me what the factory 633 in the center of this stamping between ET an the 78 stand for I know back in the old days engine rebuilders would put stampings on blocks but kept them away from suffix codes an vin #s really hoping someone has some info or maybe have stampings on there Canadian Pontiac i know what all the other numbers mean, that odd 633 got me thinking what it could be any ideas the 3 is most likely a correction so maybe its a 63 ? 


-- Edited by mrford on Wednesday 27th of March 2024 09:34:12 PM



-- Edited by mrford on Thursday 28th of March 2024 08:28:10 AM



-- Edited by mrford on Thursday 28th of March 2024 08:33:34 AM



-- Edited by mrford on Thursday 28th of March 2024 08:35:36 AM



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-- Edited by mrford on Saturday 27th of April 2024 01:49:19 PM

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Addicted!

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RE: Mystery stamping between suffix an vin# anyone seen this code please have a look at photo thanks


Anyone ?



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Canadian Poncho Superstar!

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The 633 looks like the 3 stamped sideways is a correction of the 3 stamped sideways in error, what comes after the 7811? What Ive seen on my older blocks is a partial vin but usually those numbers appear to the left of that engine stamping code. What is the casting number and casting date for this block?

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63 Parisienne sport coupe (The Big GTO), black, maroon interior, 409 4 speed; former owner of a 59 El Camino, 63 Corvette SWC, 62 Chev Bel Air SC.
1963- Pontiac top selling car in Canada

Mahone Bay, NS Still not old enough to need an automatic



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RE: 1968 BBC 396/325hp Mystery stamping between suffix an vin# ever seen this code please have a look at photo thanks


Nothing yet any buddy 



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Canadian Poncho Superstar!

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Looks like a hole (threaded ? ) on each side of the 633 ?

Could there have been a plate placed over the 633 showing a number correction?

-G



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They are not screw holes just markers thanks!



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Beaumont 396/325 Mystery stamping between suffix an vin# ever seen this code please have a look at photo thanks


Still hoping someone will know, it most likely was stamped at the original casting plant. 



-- Edited by mrford on Thursday 25th of April 2024 08:23:07 AM

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1968  396 /325 first two weeks of production stamping anyone have similar stamp of 633



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