location of serial number on 5ktq engine

[mike harris]

Received a few e-mails concerning my question as to
how do I tell which engine is in the '87 5000tq. All
said get the numbers off the engine and post them here
and someone should be able to tell me. I went back to
dealer late yesterday but it was closing time and
getting dark so I was rushed. I looked around the
engine and found no plate with the numbers on it. Can
someone give me a hint where it might be located? The
head had a number stamped on the side 035-103-373. The
wastegate was 035-145-705, manifold 034-133-233 and
that was pretty much it.
When I drove it boost was 1.3 and hit 1.4 once but the
engine feels weak for the 165 hp it is suppose to
have. The compression test that was done 2 days was
excellent, there are no vacuum or exhaust leaks which
is why I'm wondering if the older style engine had
been swapped. I went through Scott M site and searched
the audifans google archives looking for help without
much luck. Thanks

Mike H
'98 A4

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