I too need help IDing an early eng & tranny

[Racerbvd]

I know, but I'm dyslexic and can only find before or after #s.

Can anyone help me ID the year & model of this early 911 engine & tranny??



Tranny 901. 301.101.2R



Heads 901.105.111.OR



Case 901.101.102.2R



Top Case *6405074*


TIA

[dweymer]

I'll trade ya the answer for some headers

[dweymer]

hehe, I crack me up! I'll see what I can find...

[LeeH]

I read it as a 1980 SC 3.0L.

Source:
http://www.elferhelfer.com/fzident.htm#

[Racerbvd]

Originally posted by dweymer
hehe, I crack me up! I'll see what I can find...

That is pretty good. There will be some headers coming out of the race shop, but since they don't belong to me, I won't be able to trade

The engine has Zenith carbs, I'm pretty sure it is an early "T"

[dweymer]

Byron do you have the engine& trans type?

[dweymer]

deleted-for more accurate info from Grady:

[Grady Clay]

Byron,

The engine number is an ’80 911SC. It has the form:
6 = Engine 6-cylinder
4 = Engine Type 930/07 3.0
0 = Model year 1980
5073 = Sequential number

The Porsche “Technical Information 911SC, Model 80” (4591.21) says the Number Series is 6400001 to 6409999.

The engine type number is to the right and slightly forward of the engine serial number and is stamped vertically in the case. It should be 930/07.

If the transmission came with the engine, it is a type 915/63, serial number 740xxxx. Too often these are scraped off the bottom rib.

Best,
Grady

[Racerbvd]

Originally posted by dweymer
Byron do you have the engine& trans type?

It is a 901 box, and an early engine, still trying to get the pix off the new camera onto my PC.,

[Grady Clay]

“ It is a 901 box, and an early engine….”

That is interesting.

The ’70 system is 6X0xxxx where:
6 = Engine designation, 6-cylinderr unit
X = Engine type; 1=T, 2=E, 3=S and no 4 specified.
0 = Model year 1970
xxxx = Sequential number.

Really need the engine type. It should be of the form; 901/xx or 911/xx.

Is it possible the 4 is actually a 1? If so, you have a ’70 911T 911/03 (RoW) or 911/07 (USA) and the Zenith carburetors would be correct.

If this is a 901 or ’70 911 transmission, the Transmission number and type are stamped on the center rib under the differential. During the ’71 model year there was a new rectangular boss cast below the differential for the numbers.

Best,
Grady

[Soterik]

Come on you guys, this is easy!

That's a 914/6 engine. The stamp the engine numbers on the top of the case. It's from a 1970.

Regards, Eric

[Grady Clay]

Eric,

A tip of the hat.


Some little known trivia. I don’t have this data for the ’70 model but for the ’71 914-6s (all few hundred), here is the engine numbering scheme:

ENG TYPE _ ENGINE NUMBER
901/36 - 6410001 to 6413000 - manual trans.
901/37 - 6413001 to 6414000 - Sportomatic.
901/38 - 6414000 to 6417000 - manual, exhaust emission control.
901//39 - 6417001 to 6418000 - Sportomatic, exhaust emission control.
901/25 - 6418001 to 6418500 - for Rallye-cars (230 hp).
(From Porsche KG “Technical Information” dated September 22, 1970. “Engine numbers 914/6 – 1971 models.”)


I assume the ’70 914-6 had a similar numbering system. I will guess that one 1970 series starts with 6405001 and this is the 73rd example in that series or the series started at 6404001 and this is the 1073rd example in that series. Either is theoretically possible if the series is the 901/38 engine.
Does anyone have any documentation?

It is interesting that a ’70 914-6 and an ’80 911SC can have the exact same engine number (but different type numbers). You can see why they went to letters for the model year.

Best,
Grady

[Racerbvd]

Originally posted by Soterik
Come on you guys, this is easy!

That's a 914/6 engine. The stamp the engine numbers on the top of the case. It's from a 1970.

Regards, Eric

Thanks Eric, if anyone wants to take a six back to stock, I guess I can help (I knew this wasn't what I really needed for the 911 clone I'm building)

Now for the tranny, the number on the rib looks like 7195266 any ideas??

Thanks Guys!!

[Grady Clay]

Byron,

You should offer the engine on all the 914 forums. Someone needs an original. The 6405073 may fill the need. What is the Type Number? I think I still have five.

OK,

Transmission 7195266 decodes:
7 = Transmission type for 6-cylinder engine.
1 = 5-speed, standard ratio.
9 = Model year 1969.
5266 = Sequential number (range is 7193001 to 7198787).

That is a late ’69 transmission. It is a magnesium alloy pressure casting Type 901/13, geared AFMSZ with Simplified differential. Check for the differential update and note if there is a crack in the main casting near the pinion bearing bulkhead (top-side, differential cover side).


FYI, the 914-6 transmission numbers are 7XZxxxx:
7 = Transmission for 6-cylinder engine (5=4-cyl)
X = Transmission type; 5=5-speed manual, 6=4-speed Sportomatic, 9=Special.
Z = Model year; 0=1970, 1=1971, 2=1972, 3=1973.
xxxx = Serial number.

The type numbers are:
914/01 - 75Zxxxx - 5-speed
914/05 - 76Zxxxx - Sportomatic for 6-cyl.
914/15 - 56Zxxxx - Sportomatic for 4-cyl. (Did Porsche ever build any?)

I have never seen a 914-4 with a 5XZxxxx transmission. All are HA yy yy y or HAO yyy yyy. These are type 914/11 and 914/12.

Best,
Grady

[Racerbvd]

Grady, you are the man!! Thanks!

I'll list the engine on the 914 site, as I would hate to use it in my project when it should be in a proper teener (I also have a few of those, but none with the correct vin) and find a bigger engine for my project. The tranny is still good for one of my other future projects, although I am changing some priorities again.

Here are the tranny pix!!

[Grady Clay]

Byron,

Look at the rib on the bottom and confirm it is a type 901/13.
A photo would be useful.

Is this a crack (red arrow) I referred to earlier? Is there one
on the breather side also?




Do a Pelican Search on “simplified differential.” You can
easily tell if it has the update by removing one axle
flange stretch bolt. No tit = updated, worn tit = needs
update, almost broken tit = count your blessings.

Best,
Grady

[Racerbvd]

Not a crack, I'll get some better pix when I get back from Daytona.

Thanks Again!!!


Byron