[V8] A8 engine swap into a '91 v8 5spd

Thomas Barbera barberat at yahoo.com
Sat Dec 20 15:16:50 EST 2003


Has anyone looked into the differences between the v8
3.6 engine and the newer a8 engines?  I may have an
opportunity to buy a '99 A8 4.2 engine for a decent
price and am considering swapping out my high milage
3.6.  Anyone done any research?  Mounting differences?
 Obviously I would need the harness and ecu, but would
the tranny and engine mounts line up?  I've seen
pictures of an S8 engine in a V8 but I need more info
on how much work it might require.  I installed an MC
motor in my '86 4kq without many issues, so I figure
the A8 swap may even be easier, no space limitations. 
If anyone has any input or can share their
experiences, I'd love to hear from you.  

Tom Barbera
'91 v8 5spd (175k, '04 A8 rims, H&R/Bilsteins, Amarena
Mica w/ grey sports)  
'86 4ktq (MC'd)


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