engine stamping

[TheTorch]

Would anyone mind telling me what this engine stamping means? It seems obvious it could mean a 1987 3.2 specification, but I am never surprised to learn that Porsche numerical schemes are not what they seem. Thanks.

[9er]

I believe week 32 of 1987 as casting date.

[davep]

I agree with Chris; it is a casting date.
One thing that you will need to understand is the difference between stamped numbers and cast-in numbers. Most of the numbers on cast metal parts are cast-in numbers such as part #'s and dates or logos. Stamped numbers are rare and are generally either serial #'s or type #'s.

[TheTorch]

Great -- that's helpful to know. I was using the wrong terminology, but moreover have dated the engine case.

Some have referred to my 3.2L as a short stroke -- seems like this is usually considered a long stroke (74.4mm), though not as long as a 3.6/3.8L ?

pre '72 at 66mm stroke
first long strokes: '72+ 2.4L to 3.0L at 70.4mm stroke
3.2L at 74.4mm stroke
3.6/3.8L at 76.4mm stroke

Please feel free to correct me -- trying to learn here.

[davep]

Some have referred to my 3.2L as a short stroke -- seems like this is usually considered a long stroke (74.4mm), though not as long as a 3.6/3.8L ?

pre '72 at 66mm stroke
first long strokes: '72+ 2.4L to 3.0L at 70.4mm stroke
3.2L at 74.4mm stroke
3.6/3.8L at 76.4mm stroke

The 66 & 70.4 cranks can be swapped between the early cases, but I don't think the newer cranks will fit.
Probably the 74.4 and 76.4 cranks can be swapped in their respective cases. So long and short cranks for the two different designs?

[Lz7w]

my understanding is that a 3.2SS is usually 98mm pistons w/ a 70.4mm crank. but maybe there are other configurations to arrive at the 3.2SS setup as well.