As in...

If you know the engine number, can you figure out what chassis it belongs to? I see people looking for specific engine cases that match up to their cars (914/6 specifically) and I'm curious how you find that out?

TIA

to be sure, you need documents like the original service manual or the Porsche CoA

but there are indicators, that might show you if a chassis could match an engine
VIN - 914043xxxxx
engine - 6404xxx

0 = model year 1970

OK,
I asked because I was trying to see if I could find what car the engine case I have goes to.

Engine # 6405100

1970...then ???

Yup; that would be from a '70 Six.

6405100 is 78 engines later than mine
From what I've seen with other numbers, the engines weren't
always put in in a consistent exact numerical pattern. .

By adding 78 to my numbers, I'd estimate your body vin number would be about 914043 1695 or a Karman body ID of 131735. . . On my Six, the trans number matched the Karman trunk stamping number identically

My Six is Karman [trunk stamping] ID 1657, vin is 1617, trans is 1657 and my original engine is 5022. . .

The trunk stamping is dead center in the trunk pan, about 6-8 inches above the trunk latch. The hole in the picture is the spot for the center screw for the muffler shield.

yup - you need to know, that there were (4) different engine types in model year 1970 + 71

901/36 - Euro 914-6 with manual transmission
901/37 - Euro 914-6 Sportomatic
901/38 - USA 914-6 with manual transmission
901/39 - USA 914-6 Sportomatic

all engine types had their own running numbers
this is why very early cars might have close running numbers at VIN and engine number, but very late cars big differences

OK, so mine is a USA manual - 901/38

Click to view attachment

Click to view attachment

YEP ! and when you see the zero in the '640' means its a 1970 USA Manual trans 914-6 case

still doesn't help in finding the chassis it goes to... except that it's a 1970 US manual car.

Funny...if you look at the link at the top of the page for '914 info' and look at Engine Numbers, it says a 901/38 is a 916 engine!

based on this engine number I would expect a VIN somewhere in the
914.0.43.2000 - area
maybe +/- 100 numbers

Dave Pateman had an excellent list with VINs and matching engine numbers, but unfortunately I never saved it on my computer
I didn't see him here on 914World for a long time
he used to visit the roadglue forum, but that's long ago ...

Well, as stated above, you can narrow it down to a VIN range within '70 ...

Looking through the VIN database, i found the following entries:

Toolguy:
VIN: 914.043.1617
Engine: 640.5022

You:
VIN: ???
Engine: 640.5100

Aj Serrano:
VIN: 914.043.1722
Engine: 640.5125


That puts your engine somewhere between 914.043.1618 and 914.043.1721.
Toolguys VIN and Aj VIN are 105 apart. Their engine numbers are 103 apart.
Using that as a guideline, the VIN for your engine should be right around 914.043.1697 ...

914.043.1696 was for sale in 2009 (by a member here):
http://www.914world.com/bbs2/index.php?act...amp;viewid=9810
http://www.914world.com/bbs2/index.php?showtopic=91224
He indicates that he had a COA for the car, which should show his engine number! Contact him, i bet his engine number is within one or two of yours.

914.043.1697 was for sale online in 2001:
http://www.914world.com/bbs2/index.php?act...mp;viewid=11540

914.043.1698 last know location is Switzerland (1998):
http://www.914world.com/bbs2/index.php?act...mp;viewid=11995

well, that's definitely wrong

914/38 is a 66/88mm engine (stroke/bore) => 2.0 liter

some 916 had a 2.4 liter engine, other a 2.7 liter engine

ooops - Andy did better research that I ...

see? That's why I noted Andy in the subject..

Thanks Andy!

- I emailed 1696
- how many of us wish we had bought 1697 back in 2001 ($7000!!)
- 1698...Switzerland huh?

I actually got my case back in 2009 or 2010. Maybe 1696 got sold off in parts?? My mechanic can't remember where he got it...

....or it's 1695 because it probably rusted away (no listing anywhere)

so I got a response back from the previous owner of 1696...

"i think the serial number of the engine was 6406040"

Obviously...not possible right? I'm hoping he just made a mistake. I'm asking him to go back and confirm...

hmmm....

That would be way off! Does he have any pictures of the COA?

Working on it...

so...here's a question...Brad's car:

VIN 9140431598 engine number 6405036

How can that be?
The VIN is BEFORE TOOLGUY's But the engine is AFTER.

http://www.914world.com/bbs2/index.php?showtopic=193548
(i assume the 645036 is a typo, missing the "0")

Gotta love Porsche's record keeping...

They weren't always in sequence. A lot of things can happen in a factory.

I've keep an eye on vin vs. engine numbers for years. . like I said before, there was nothing consistent about the match, just enough to give us an idea about what is expected. . . What I've noticed is that the engines remain within a 50 number range. . I can imagine the factory with a bunch of engines coming in from the engine assembly and Hanns just picking the closest one to shove in a body. .
Brads car and mine were probably built on the same day, with our Vins 19 apart and the engines 14 apart, although in the wider direction, but still within the 50 number range I mentioned.

So I'm resurrecting this thread because 1) it took me all day to find it and 2) I think a few people out there are looking for car/engine matches....

Still haven't found the car for engine 6405100...which is still for sale!

Rick might have a car that would match that engine...not sure.

If it helps I have two 914-6's and here are the vin. engine and trans #'s.
I have the COA for one and plan on getting the other soon.


Vin # 9140432255 , Engine # 6405500 , Trans # 7502252 ( no coa yet but pretty sure engine/trans go with this vin )

Vin # 9140432384 , Engine # 6405562 , Trans # 7502404 .I have a coa for this vin, engine is correct but no trans info recorded at time of build. I'm sure the trans belongs to this car as it was a complete unmolested car when I purchased it.

It seams to me that the #'s aren't consistent on some cars and others are close.

I also have a case # 6405487 it's for sale if someone needs it.

My best guess is that the VIN range will be between 914.043.1725 and 914.043.1825
Click to view attachment
working from my database and 1622 unique 914/6 records

The vin # for the car I have is: 9140430624 The chassis# is 130656 I don't have the transaxle yet. Nathan is going to ship it to me when he swaps it out of his car.

I transferred the title but have not received the MN title back in my name so I can't send for the COA until I can prove ownership.

Does the COA have the engine # listed?

What would be the range of engine # I should be looking for?

Rick:

I have #619
Chassis # is 130645
Engine # is 6404299
Transmission# is 7500630

That might at least give you an idea.

My vin # is 5 higher than yours. So if I understand factoring in the 5 number difference my engine # could be in the range from 6404279 to 6404329?

(25 numbers either way?)

My chassis # is 11 higher than yours.

It should. I think just about all of them do have the engine number listed. Many do not list the transmission number, though. IIRC, the early transmissions are only coded down to the week they were installed, and not to the exact number? (...Or I could be confusing that with something else.)

They often have very confusing option codes listed as well. We suspect that either someone misreads the hand-written info in the actual records, or uses a cross-reference for the code numbers from some later period that doesn't actually apply to 914s.

--DD

The COA should have the trans number listed as well. Since Porsche kept the records for the 6's I would think it would be accurate. They have kept pretty good number records since the beginning. Even my 53 356 had the correct engine and trans numbers listed when I got the COA for it. They sometimes don't do so well on interiors colors or options installed, but they usually get the engine and trans right.

Can someone post their COA so we can see exactly what's on it?

I can't help with the COA..
Never got one.. Never thought I needed one.
I've known my car long enough that there should be
no big surprises.

I'm getting ready to head the door here but I'll post mine later today...

Here's a copy of my coa.