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By Rowen - 10 Years Ago
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I'd like ta get some help finding out if I have a #s matching engine in my 55 crown vic. I was told I needed to make sure what I have before making any mods. Im sure somewhere here somebody has already answered these questions. Are there on-line sights that decode engine #s? And where will I find these #s? And are the blocks all the same through all the engine sizes, 272, 292, 312? It seems from what I've read here, that the heads and cranks are what makes the difference. Are the heads marked for each different engine size? I know this sounds like a lot of questions, but I am a newbie to the y block. I will appreciate any help/info that I can get on this - RL - and Crown Vics Forever!
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By Ted - 10 Years Ago
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Casting numbers off of the block and heads are a starting point. There is also a date code on the block that should precede the production date on the VIN plate. The same holds true for the date codes on the heads which can be either on the exhaust side of the head or within the valve cover area depending upon the head itself. On the right front of the engine (looking from the front) just ahead of the valley cover is a stamped number that gives some additional information regarding when the engine itself was assembled.
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By NoShortcuts - 10 Years Ago
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Hi Rowen. I'll send you the Internet addresses to reach what you're asking for in a couple of minutes. All you'll have to do is hover over the address and toggle it...
I'm writing to save someone else doing the same. 
Cylinder head and engine block casting codes coming up...
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By NoShortcuts - 10 Years Ago
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Per John Mummert's web site at Ford Y-Block.com...
FoMoCo y-block engine block casting I.D.s by year and application . . .
http://www.ford-y-block.com/Block%20identification.htm
FoMoCo y-block cylinder head casting I.D.s by year and application . . .
http://www.ford-y-block.com/cylinderheadchart.htm
This site is about helping each other with our mutual y-block related interests.
Hope this helps.
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