The Ford Barn

Dana Barlow · 05-15-2014, 02:02 PM

There is some # ? on a few of my Y-blocks stamped in on the front lip left side of vallycover, I don't know what they are?
I took the time to clean them so I could ask,one of the blocks has 2B1 E 5<but "E" is backword,another has 91V7,and my last one has 29G04=these are not cast in but stamped on the vallycover lip.
The're the only stamped # I have ever seen on "Y",I understand that Y-blocks have no vin # stamped on them,so what are these things?

streetdreams · 05-15-2014, 06:20 PM

They do have factory cast part numbers also, correct ? I would suspect the stamped numbers are rebuilders or company fleet ID's.

y'sguy · 05-15-2014, 06:43 PM

yes, I would say rebuilders marks.

Dana Barlow · 05-15-2014, 09:17 PM

Yes,thanks, do have the cast numbers, cast in to the side of blocks,but what I'm asking about is "stamped" number#? There too clean an neatly done for rebuilders,I'm thinking the're Ford but I don't fine any info from my hunt so far. They are stamped on the left front of vallycover gasket flat of block and do show with the cover in place

I never had payed any adtenion to them before,to EZ to over look.

darrell · 05-16-2014, 05:19 AM

those are dates when the block was built as far as I know.

rick55 · 05-16-2014, 05:26 AM

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I have 56 yblock with numbers stamped there also. It had never been remanufactured either.
All Aust. Yblocks are stamped on the left front just below the head.

smtichy · 05-16-2014, 07:55 AM

Dana, I've also read somewhere that a stamp in that location is the motors assembly date. Here is a link to decode it. http://fordclassics.com/date-codes

Unfortunately the codes you mentioned don't seem to fit into this decoder. Any info you have on the origin of your blocks may give some other members a clue to help advise you. Are these in cars, trucks, or are they blocks you recovered from scrapyards?

Dana Barlow · 05-16-2014, 09:55 AM

Thanks for the info.
I've had many "Y"s over the years,a motor a like a lot an also raced for a time,was the first motor I picked to build a hotrod with back in 1959,so there are still 4 of them in the back my garage and one in my old hotrod,I don't remeber were they all came from,way too many all sizes,used up all the 312's years ago,would love to get another but there out of my piggybank $ now. Just had never payed any mind to these stamped# before.

05-15-2014, 02:02 PM	#1
Dana Barlow Senior Member Join Date: Jun 2010 Location: Miami Fl. Posts: 149	stamped # y-block? not cast in,what are they? There is some # ? on a few of my Y-blocks stamped in on the front lip left side of vallycover, I don't know what they are? I took the time to clean them so I could ask,one of the blocks has 2B1 E 5<but "E" is backword,another has 91V7,and my last one has 29G04=these are not cast in but stamped on the vallycover lip. The're the only stamped # I have ever seen on "Y",I understand that Y-blocks have no vin # stamped on them,so what are these things?

05-15-2014, 06:20 PM	#2
streetdreams Senior Member Join Date: Dec 2010 Location: Howell, Michigan, USA, The Peoples Slightly Overspent Demodependancy of Michigan Posts: 638	Re: stamped # y-block? not cast in,what are they? They do have factory cast part numbers also, correct ? I would suspect the stamped numbers are rebuilders or company fleet ID's.

05-15-2014, 06:43 PM	#3
y'sguy Senior Member Join Date: May 2014 Location: Tulsa, Oklahoma Posts: 151	Re: stamped # y-block? not cast in,what are they? yes, I would say rebuilders marks.

05-15-2014, 09:17 PM	#4
Dana Barlow Senior Member Join Date: Jun 2010 Location: Miami Fl. Posts: 149	Re: stamped # y-block? not cast in,what are they? Yes,thanks, do have the cast numbers, cast in to the side of blocks,but what I'm asking about is "stamped" number#? There too clean an neatly done for rebuilders,I'm thinking the're Ford but I don't fine any info from my hunt so far. They are stamped on the left front of vallycover gasket flat of block and do show with the cover in place I never had payed any adtenion to them before,to EZ to over look.

05-16-2014, 05:19 AM	#5
darrell Senior Member Join Date: Dec 2010 Location: p.e.i. Posts: 1,060	Re: stamped # y-block? not cast in,what are they? those are dates when the block was built as far as I know.

05-16-2014, 07:55 AM	#7
smtichy Senior Member Join Date: Sep 2013 Location: Prague, Czech Republic Posts: 126	Re: stamped # y-block? not cast in,what are they? Dana, I've also read somewhere that a stamp in that location is the motors assembly date. Here is a link to decode it. http://fordclassics.com/date-codes Unfortunately the codes you mentioned don't seem to fit into this decoder. Any info you have on the origin of your blocks may give some other members a clue to help advise you. Are these in cars, trucks, or are they blocks you recovered from scrapyards? __________________ Steve '55 Sunliner - 292 V8, 3 speed man. w/ OD ČKMAA - Český klub majitelů amerických automobilů

05-16-2014, 09:55 AM	#8
Dana Barlow Senior Member Join Date: Jun 2010 Location: Miami Fl. Posts: 149	Re: stamped # y-block? not cast in,what are they? Thanks for the info. I've had many "Y"s over the years,a motor a like a lot an also raced for a time,was the first motor I picked to build a hotrod with back in 1959,so there are still 4 of them in the back my garage and one in my old hotrod,I don't remeber were they all came from,way too many all sizes,used up all the 312's years ago,would love to get another but there out of my piggybank $ now. Just had never payed any mind to these stamped# before.

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