Engine Number

[Rusty]

I think I'm right in saying that the engine number is stamped on the head?

I've been getting a little OCD about this of late, as I've picked up an AAN head and quite want to keep the ABY head that came with the car, to keep the engine number the same.This would involve bolting on the AAN head, following a brief refurb and then going to town on my ABY head, assuming it's not toast

I'm fairly certain that I'm being daft, so thought I'd open up the debate to the forum.

The car's hardly original, so resale value isn't really going to be affected but I'm concerned that to the uninitiated, the presence of an AAN code 'engine' could put them off, despite the £5k in receipts for a new motor...

Thoughts?

[martinjs]

Skim the AAN number off and get your ABY number re-stamped on.
What if you take your ABY head off and find out it's cracked?

[Rusty]

Yes, that's a good idea.

Indeed, if I pull off the head and it's cracked to kingdom come, then I'll have to rethink things...

[bazburn]

Mine's a mod 7A on an AAN block with ABY ancillaries...I just stamped the old AAN no on the head....

[Error404]

Skim the AAN number off and get your ABY number re-stamped on

simples

[martinws]

I'm going to fit a 7a head to mine soon. I might just stamp KV on it n claim its original engine.

[gnutz2]

+1 stamp it on the head.

My current head must have been replaced with a new one as its blank where the number should be. That or.....

[UrS4boy]

My current head must have been replaced with a new one as its blank where the number should be. That or.....

I believe that is correct. The heads are the same for the AAN, ABY and ADU so by not stamping the replacements in the warehouse, Audi could cover 3 engines with one part. However, as far as I know, that is ancient history. I know the last AAN head in North America was bought from Audi a few years ago. Not sure what Audi Tradition might have on their shelves.

[Majorcina]

On my AAN i replaced the head(crank's) and used 7A converted.The law in my country dont alove any other engine in the car exept stock
Then i belive the best think is to stamp the 7A head,since i never seen that stuff done i am wondering do i need to remove the head for that?Or it can be done with head on car?