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Discussion Starter · #1 · (Edited)
Ok Im talking to a guy around 5hrs fome me with a motor im thinking about getting. I asked him to let me knwo what #'s are on the casting. This is what he e-mailed me.
M9 B26J0Al 2B6 l25
Im not fermiliar with any of these #'s do any of you have any Idea what block it would be & is it a good one. Im just trying to make sure I know exactly what im getting befor I make a 5+hr drive with cash in hand & it turns out not to be good.

TIA
 

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Discussion Starter · #2 ·
1. Brazilian Blocks are cast by a company named "TUPY" and are marked such. They are identified with cast evolution numbers. #53's are TUPY's. #54 and later evolutions were improved to correct the block issues that the 53's had.
2. Mexican Blocks were made by "Teksid" these blocks to my knowledge never had a problem with cracking, as they are heavier duty by trait, but they did follow the evolutions and got thicker. These blocks do not have the 2 digit "cast number" embossed on the side, instead a series of numbers that are unidentifiable to me. The Mexican blocks were rumored to even be harder to machine do to a harder cast overall, basically better quality in my opinion.

Brazilian Tupys always seem to outnumber Mexican blocks during the ISB's production probably about 8 to 1. So basically if there is a pattern number its Brazilian, if there is a series of small numbers its Mexican.
By the way the Mexican equivalent of a 56 pattern was the Heaviest ISB block of all. This means if you have a 2002 without a #56 on it and instead it has a series of numbers that are smaller and hard to identify, you got the the big boy!!!


This is a 1999 block. Does this mean Its the good "Mexican" block or what???
 

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well heres a bump but i think that if its a 53 block the number 53 is in the casting number so it looks like your fine but i was relieved yesterday when i checked mine that it didnt have any number on the block which means it was a mexican block which also means its the beefier version but the ones made in brazil were the 53s
 

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Discussion Starter · #4 ·
well heres a bump but i think that if its a 53 block the number 53 is in the casting number so it looks like your fine but i was relieved yesterday when i checked mine that it didnt have any number on the block which means it was a mexican block which also means its the beefier version but the ones made in brazil were the 53s
Did you check both sides?
 

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Discussion Starter · #5 ·
well he just e-mailed me back & said there is NO 53 any ware on the block. But Im still wondering if its the stronger mexican block
 

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yes i checked both sides and also check the entire perimeter of the block... no where to be found! i was pleased lol
 

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Discussion Starter · #7 ·
Ya thats a good thing. You scored there! Others please give me your input on these #'s thanks
 
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