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Well I was working on my L67 swap and we got to thinking that the VIN would be on the block or Transmission somewhere, and then I could just get a carfax for it and have an idea of the life my motor lead. Well the only thing is that only I think the last 9 or so are on the block. My dad seems to think that we could use the first half of a VIN from a another PA ultra from 98 because those should all be the same. I am not sure about this but figured I would ask.

What do you guys think?

well here is how it breaks down by each digit


1: nation, so 1
2:manufacture, so g for gm
3: divison in manufacturer.....
4:then weight.power
5:platform
6:model/special code
7:body type
8:Engine
9:
10:year
11:plant code
12-17 is production sequence

so by looking at that, yes, since everything else woudl be the same IMO

Now I just need a PA guy to help fill in some holes!!!!

I don't think the VIN is on the engine. That's the stamping number for the block more than likely.

I agree, I don't think you'll find the VIN on the engine.

Found out the last 9 are on the engine and I just need to break down the first seires of letters and #s

You should be able to find one on ebay with a VIN. Are the last nine digits stamped into the block?

Should be 1G4CU521

Note #3

The table below will help you locate your car's unique DNA - its unique vehicle identification number. VINs are normally located in several locations on a car, but the most common places are:

- On the door frame/door post of the front doors (usually driver's but sometimes passenger's)
- On the dash near the windshield
- On the engine itself (machined pad on front of engine)
- On the car's firewall
- In the left-hand inner wheel arch
- On the steering wheel/steering column
- On the radiator support bracket
- On your car's title, registration, guarantee/maintenance book or on the declarations page of your auto insurance policy

He doesn't have the Park Avenue that the engine came out of londontman. That's why he was asking.

Yep it is 1G4CU521, found that out last night, BUT I looked at the machine pad on the trans and typed it in and got nothing. Cant find anything on motor either. Might have a replaced trans? Dunno. If I could find something on the engine it would help alot.

You know its funny... Out of all the 3800's I have tinkered with I have never seen a Vin Plate on any of them.. Or the trans for that matter, just the hydramatic Tag...

Ditto. Have 4 motors here (2 installed, two not), and none have VIN tags.

I've never seen one either. I still think the number you found was a stamping number. Post it and let us see.

I could be wrong, it just happened to match up on the old 8 9motor. Ill post pics later tonight. To bad its not on the sub frame, I still have that...

taking off the LIM will give you way better idea of how the engine was run compared to a VIN.

True and I will be doing that but, I figure if I could get a carfax, I would know miles, and some maintenance, etc, etc. Just an added piece of mind.