Steve 935

Is there a way to ID these engines besides using the serial number. Would the casting number on the crankcase give any clues? I looked at one that seems like the later type with the plastic intake and R134 compressor. I noticed that the casting number had a R in it . Would that be the 1994 R type?

Cupcar

The serial number is in the form starting with 61 or 62. 61=Turbo 62= Normally aspirated. The letter following the numbers codes for year 89=K,90=L,91=M,92=N,93=P,94=R. The rest of number is serial number.

Stamped ahead of the serial number on the horizontal section of case, next to chain housing is the engine type. M64/01= N/A stick shift, M64/02=N/A tiptronic, M64/03=Carrera RS, M30/69=3.3 Turbo, M64/50=3.6 Turbo.

Adrian

62R says 1994 model year engine,
Ciao,
Adrian
964C4

Steve 935

I was wondering if there is a way to tell the engine year without looking at the serial number. I noticed the number 964.101.111.1R on the crankcase near the drain plug.

Adrian

That says the part number for right half of the crankcase. On the other side it will end with a L.
Ciao,
Adrian
964C4

PS: You will see a similar number on a GT-3 by the way.

Cupcar

Hi Adrian-

Porsche have gotten tired of people noticing the GT3 had a 964 crankcase so they changed it!! Here is thread I started on this issue:

https://rennlist.com/forums/showthre...referrerid=615

Adrian

Yes I know. Made in Spain now. I honestly think they ran out of 964 crankcase halves and had to start a new production run. The GT-3 has actually gone far beyond what was originally planned in production numbers.
You would think Porsche would have learned by now, but no! Build a great RS and people are going to keep buying it and buying it but somehow they do not plan for this just like in 1973.
Ciao,
Adrian
964C4

PS: The 964 Carrera RS ran to a production of 2000 but was not continued because of the economics of the time.

GMS

We are just ordering a new crankcase to repair a damaged 964 engine, I'll see where the parts were manufactured. Appparently current stock in Germany, as of today, is 10 sets of bare cases with studs.