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Decoding engine block numbers

Big Mack

New Member
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Location
Nova Scotia
I purchased a used motor from a salvage yard, I am trying to establish what motor it is, the only tag or number of any kind on the block is a paper one, which on the passenger side. The numbers are YUL 10 YUL R0785520 CV. The salvage guy said I was 2006 LLY ?
Any help would be great thanks !

Cheers
Big MacK
 
06LLYs are different than 04-05 LLYs.

There are casting numbers under the CP3 in the valley.
 
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