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Gm Part # 12353944 is stamped on a aluminum 2"x2" tag riveted to the block with all of the displacements. K-18 445 Hi Per. Pass is on the transmission drivers side mounting tabs of block. 0063286 is in the center of the trans tab on the block next to it is GM 3P and on right side is KO 82. I also Have (Hi Perf) stamped on the block behind the flywheel . Can you help me identify this motor ? Yr ? Make ? It is a 454 BB with oval port heads and angle plugs.
 

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Mike, thanks for the pic - it's sure a lot easier than trying to describe some of those spots. I've saved the pic, but curious as to where you found it?
 

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Joey, if yours is a 14015445, it's an '82, they didn't make that block in '72. Once you've found the numbers (thanks again, Mike, that's a great link!), go to www.mortec.com, it's a great source for casting identifiers.
 
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