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3400 intake manifold swap

Posted: Fri Jul 19, 2002 3:35 pm
by Guest
Anyone ever swapped the 3400 intake manifold on to there 3100 block?
ANy improvement? Any disappointments?  I know its kinda like a direct fit and all and you need both the lower and upper manifold, but does anyone know how the EGR valve hooks up to the manifold?
thanxz Ray

3400 intake manifold swap

Posted: Mon Jul 22, 2002 10:17 pm
by Guest
Well I'm pretty sure your 3100 was made before 99. And if I'm right you would need either 99+ 3100 heads or same year 3400 heads.  It wont fit on the heads you have because of the ports.  You would probably have to block your current EGR for it to work, unless you wired up the newer style.

3400 intake manifold swap

Posted: Tue Jul 23, 2002 2:30 am
by ErichZ26
The manifolds will bolt up to all years.  The egr is the issue.

3400 intake manifold swap

Posted: Tue Jul 23, 2002 3:13 pm
by Guest
anyone knows or ever seen how the egr hooks up on an original 3400. btw thanxz for your guys input :D

3400 intake manifold swap

Posted: Wed Jul 24, 2002 1:44 am
by ErichZ26
ALL 3400's are OBDII and stay the same from 96 to 99 where its like the late 95 and 96 Beretta on top.  In  00  it went to  a side mount.

3400 intake manifold swap

Posted: Wed Jul 24, 2002 2:14 am
by Guest
so which 3400 manifold would you say is better 96-99 with very few modifications or take on the challange of 00+ manifolds?

3400 intake manifold swap

Posted: Thu Jul 25, 2002 10:45 am
by ErichZ26
They are all the same...except the minivan ones have the thread in insert for the lower intake needed for installation.  Otherwise you need to show your creativity.  This applies for the 3400 swap as well.  I have not gone into this that much.  I made a custom insert.  The future s swaps will get cut threads into the manifold.