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Unread 09-11-2010   #1 (permalink)
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Talking 351W engine serial numbers

Hello everybody! I'm building a 351W for a Factory Five Cobra kit and wanted to ask for some opinions on block serial numbers. I was told that ford didn't place serial numbers on any of thier blocks except hipo engines,i.e. 427, boss 351,etc... a friend from another forum sent me this picture of his 351W showing his serial numbers (last 8 digits of the vin#) is this common, or was it stamped as a replacement block,or? here's the picture:


the number is stamped on the left side of the block, below the cylinder head, next to the dowel pin for the bell housing.

Thanks in advance!
Ben Smith
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Unread 09-12-2010   #2 (permalink)
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Welcome to AFM!

Now what exactly was was your question? What year is the block? Is it a 2-bolt block?
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Unread 09-12-2010   #3 (permalink)
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Talking serial numbers

Hi! my block is a "D9AE" 1979 351W truck engine, Two bolt main. I have cleaned all machined surfaces and the only things I find are a clover shaped stamp on the timing cover machined surface, and on the back, on the left bank just above the dowel pin there is a tri angle and a diamond stamp, no numbers visible and it doesn't appear these have been tampered with. Could this be a replacement engine block from ford? I bought this shortblock from a guy who parted out a F150. This was not the original engine according to him. I am planning on building a 1965 AC cobra replica (Factory Five) and I'd like to make sure this engine checks out before I dump a load of cash into it before the state declares it stolen or otherwise. I've seen too many people spend lots of cash on these only to find out the engine block or what ever is hot.... rather lose $50.00 than $3500+ you know?
Thanks for the help.
Ben

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Unread 09-12-2010   #4 (permalink)
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I don't know if replacement blocks have have some sort of different marking, but I'm attaching a picture of my 1969 C9OE block and circled where the casting # is.

I have never seen any serial number or VIN-related thing on the 3 SBFs I have in my shop, but I wasn't especially looking for them. Now my personal opinion: I in absolutely no way condone ever touching stolen property. But... I doubt that there are a ton (any) police looking for some stolen 351 motor, especially if it's in a Factory Five car. On the one-in-1000000 that that motor is actually stolen property, it happened so long ago that is has probably been forgotten.

Just my $.02 though...
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Unread 09-12-2010   #5 (permalink)
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Cool You misunderstood what I was saying

What I meant was " IF this block turned out to be stolen" I would hate to have invested in this block and find out it was crooked. I would never buy something hot anyway. The person ibought it from is looking for the title to the truck it was removed from now. Otherwise, I'm using this one for a core on a verifiable block roller one if possible. Thanks for the picture.
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Unread 09-12-2010   #6 (permalink)
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I don't know if FoxChasis still gets on here or not, but he would definitely have an answer for you.
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Unread 09-13-2010   #7 (permalink)
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Don't know where this premise came from that only "high performance" engines had a serial number (partial VIN), but that is not correct. Ford stamped serial numbers on all blocks.

I can't make out the first two characters but the last six are "A25089", which would make it from an E/F-series vehicle. The first two characters tell you the model year and assembly plant.

The engineering number ("D9AE...") will not tell you what year the block is or what it came from. That number is only for the year and model for which it was originally designed. Blocks are carried over in subsequent years and across different model lines, and that number is not changed. There is a date code in that same area that tell you the exact day the block was cast.
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Unread 09-13-2010   #8 (permalink)
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Talking great Info!

FoxChassis, and everyone else who replied,
Thanks for the great info. I just talked to the person I bought the block from and he says he has no documentation from the vehicle this engine came from, so, I will just use this engine for a core charge and get a verifiable block from a salvage yard, something I can match a VIN# to. Missouri State highway patrol is strict on part numbers matching and sticklers for correct documentation, basically your'e "guilty until proven innocent" the titling process for a kit car is almost exactly like a salvage title process, they want to make sure the parts are legit and not stolen, since I can't prove the origin of this engine, time to move on. I won't invest a ton of money in a project such as this only to find out the state will confiscate it later.
Those highway patrol guys are clever, while you are parked in thier parking lot, they run your plates and if you have any outstanding tickets are warrant's (God forbid) they will arrest you right there....trust me, I won't give them any reason to shed light on me... I thank each and everyone of you for dispelling the wrong info on the block serial numbers issue.
Have a good one!
Ben
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