Help determine a year of 5.3 motor?
#1
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Im looking at a LM7 guy swares up and down it came out of a 05 truck but it does not have flat top pistons has single feed fuel line 706 heads blue/green ecm connectors and is drive by wire. The only thing it doesent have is ecm. The only number I cant get to cross on it is sticker on back of drivers side head 10WCJK043452079 is there a way to check this number and maybe figure out a year of the motor?