Engine ID code - need help

[bavaria911]

Gents,
I am back from Iraq, one year is over and now I am enjoying some leave in the USA (stationed in Germany).
I am planning to rebuild my 1973 (2.4) engine and 915 Trans - the seals are leaking after being stored for 3 years. I'm not doing the project until I restation in the States...maybe Henry will do the job .
Here are the questions I have for the experts:
What engine do I really have;
Case # is 901.101.102.7R
Stamp to Right of Alt/fan is 911/53
Code just above the lower valve covers is 901.105.111.0R
Code on fan/Alt is 901.106.101.5R
The engine looks like it had MFI, beacuse there are plugs (6 ea) near the Webber carb intake manifolds.

Wayne, Henry, Noah, Jack or anyone....can you help me out. I'd like to buy the neccessary parts while living here in Germany, and at a later date transport the car and parts to a certified rebuilder.

Thanks ahead,
Bavaria

[Early_S_Man]

Bavaria911,

Thanks for your service, and glad to hear you are back from the sandbox!

Looks like you lucked out on the engine!!! It was originally a late '73 911S engine, as confirmed by the 7R case and 911/53 engine type code! Good luck on the rebuild!

[bavaria911]

early S man,
Thanks. I take it that the 2.4 S motor is the 190 HP version.
What kind or size of cylinders came with the motor? Do you know what the code is for the numbers just above the lower valve cover?
Thanks again,
Bavaria

[Wayne 962]

Yup, that engine type matches for a "911S-E" engine, which is a 1973 911S engine.

-Wayne

[MotoSook]

Doh! Scott, I was looking at the wrong line of text last night...sorry, but I thought it was the 165HP E!

[Grady Clay]

Welcome home, safely! Thank you for your service.

The 911/53 tells all. The engine number should be in the range of 911330XXXX. All the other numbers are casting numbers. The case casting number clues you that it is a late (desirable) 7R reinforced casting.

Please post all the numbers on the bottom of the transmission.

The engine is 70.4 mm stroke crank – same as the 2.7. The bore is 84 mm where the 2.7 is 90 mm. The case will practically accept as large as 92 mm cylinders. In a rebuild there are some fun upgrades you can do to 2.7 RS or twin plug 2.8 RSR specs.

Tell us more about your 911. What condition (rust, previous crash)? How many miles? Is it US spec? Coupe, Targa? Do you have the MFI in a box somewhere? What is your intended use – daily driver, weekend touring, occasional DE & auto-X, restoration to original, faster street car, mostly track, or dedicated track car?

Do you know yet where you will be stationed in the States?

Best,
Grady

[fryardds]

I also thank you for your service.

Grady meant that your engine serial # should be 633XXXX, he listed the chasis # for a '73S. Too bad you don't have the original induction system because those have become very expensive to replace and restore. I would encourage you to consider the displacement increases that have been discussed by others. It will certainly be more fun.

[bavaria911]

Thanks for the confirmation.

I am back in Germany - leave is over. I can't look at the transmission numbers until June when I return for a short vacation. I do have pictures that I took with a new digital camera, but must figure out how to download them on this website?
My 1970 T Porsche looks like a 1973 RS (Red). Had new rear Qtrs welded on the car in 1985. The car was "plastic" beed blasted in 2000 and painted Porsche Red (the correct Guards Red).

What does a good MFI system go for (used and Rebuilt) ?
I'll ask my Porsche friend here in Germany what it goes for in Euros...which is not good for us US folks here in Germany...$1 equals .75 euro cents.

I'll post pics soon,

Vr,
Bavaria

[Grady Clay]

Any chance a Previous Owner has the MFI stashed away in a box somewhere? That would be very valuable to reinstall someday.

Brian – see, I make at least one mistake per month. The best part of the Forum is someone catches them. Thank you.

Best,
Grady

[fryardds]

Originally posted by bavaria911
Thanks for the confirmation.

What does a good MFI system go for (used and Rebuilt) ?
I'll ask my Porsche friend here in Germany what it goes for in Euros...which is not good for us US folks here in Germany...$1 equals .75 euro cents.

I'll post pics soon,

Vr,
Bavaria

Sorry to give the bad news but these systems have become very expensive to buy and bring back to life. You could look for a used 'T' system which will be cheaper and then have it rebuilt to S/RS specs, or look for an S spec. system and just have the pump rebuilt to RS specs. (assuming that you want to up the displacement).


To buy a complete 'T' system maybe in the $500-650 range. Then the rebuild/refurbish the pump, throttle bodies, and stacks. You can have T stacks rebored for around $400, the pump and TBs will be a range of $1600 to 2500 dedending on parts needed. Hopefully others may offer some less costly options, but I have done both systems in our cars, the 2.2S and RS, and it is very expensive to do, which is too bad because it is so a much a part of the early 911 joy, IMHO.

Grady,
That is the first one I have ever seen from you. Thanks for hanging out here and teaching us all so much.

[mede8er]

Is there an internet site which publishes egine I.D. number ranges per year?????

TIA

[bavaria911]

Mede8er.... Thanks, so what is it...maybe other could use it too !

Bavaria

[mede8er]

Bavaria...I was asking for a sight......lol.....