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Block 14015445 with XN stamp?

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Old 10-12-2014, 08:37 AM
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TeamTruett
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Default 454 Block 14015445 with XN stamp?

I am looking at a block that my engine builder thinks was never run.
The pad is stamped 67914 and the center pad above timing cover is T0125XN. Also painted blue which I thought was odd if it's true it was never run. See pics. I am curious about the date and XN suffix.
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Last edited by TeamTruett; 10-12-2014 at 10:58 AM.
Old 10-12-2014, 10:51 AM
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Mike Ward
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Never seen an engine stamped in that location or with that format. What's the block casting number and date?
Old 10-12-2014, 10:55 PM
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7t9l82
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looks , odd.
Old 10-13-2014, 02:45 PM
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Gazehound
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It looks like a T01254XN could be one of these.

T = Tonawanda engine plant
01 = Month
25 = Day
4XN = Engine code

4XN 1984 Marine 454 230 LE-8
4XN 1994 Marine 454 310 L-19 4 bolt Inboard

From Nasty Z28.com

http://www.nastyz28.com/chevy-engine-code-stampings.php

Hope that helps.

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