NG head on an MC, w/ex. valve transfer?
JShadzi at aol.com
JShadzi at aol.com
Fri Feb 21 11:30:48 EST 2003
Ken, the NG head is VERY different than the MC head, thought I addressed this in an email to you yesterday...
The NG head uses elongated intake ports because the injectors are in the intake manifold NOT the head, which forces you do use the NG intake manifold (my reference to redoing the intake plumbing).
NF head uses the MC style casting with the bigger valves, injectors in the head, etc.
Valves are interchangeable FWIW.
Javad
>Hello again,
>
>Thanks for the info on the K26 on a 3B. That's good to know.
>
>On a separate tangent, I know that the NF/NG heads have 40mm intake valves, vs. 38mm
>versions in the MC heads. I thought it was a simple swap involving just replacing the NF/NG
>exhaust valves with the sodium-filled ones from the MC head.
>
>But looking at this picture of and NG head, it looks kinda funky to me. Like it's different on
>the sides or something.
>
>http://www.audifans.com/marketplace/images/parts/3276.head1.JPG
>
>Are the castings different, or am I just not used to looking at an MC style head from that
>angle?
>
>If they are different, is there anything that would preclude putting an NG head on an MC,
>using the MC's exhaust valves. The idea would be to get the larger intake valves.
>
>Or, do you have to get the bigger intake valves and install them into the MC head?
>
>Thank you, thank you very much,
>
>Ken
>
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