2.3 manifolds fit 2.2 JT?

[JShadzi at aol.com]

In a message dated 11/9/00 10:58:46 PM Pacific Standard Time, 
rjandrew at post.cis.smu.edu writes:

<< Hello all..
 i have plans brewing for my 4kq.. but before i let them get to carried away
 will the NG 2.3 manifolds fit on 4kq block? better yet.. can i put the whole
 head on my 2.2? i know i will have to do some custom vacuum setup.. and 
 possible idle stabilizer changeover..  but will this work (in theory)?
  >>

    The NG intake manifold will only work with an NG head.  The reason for 
this is that Audi moved the injectors from the head to the intake manifold in 
the NG.  The NG head is also a good upgrade  due to the larger intake valves 
and more agressive cam specs.  Honestly, however, the best, most sensible 
swap would be to use the NG bottom end with the stock JT head and induction 
system.  An even better decision would be to install the later knock sensing 
ignition, or use a J&S knock sensor to prevent detonation from the higher 
compression engine.  To say  the least, premium octane fuel will likely be 
required to curb detonation.
Javad