Subject	Mating old style heads to new style lower plenum.
Posted by	Pearl_TTZ on December 28, 2017 at 4:57 AM
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Message	Hi, My 1992 TT was hydrolocked my the first owner in 1997. Nissan dealer fixed the car and it looks like for one reason or another I have old style 40P heads mated to what looks like a new style lower plenum. Now, everything sits fine and I had absolutely no boost leaks using old style gaskets. My main question is if it ok to mate older heads and newer lower plenum? Since port shapes are a bit different, would there be any issues that cannot be fixed with port matching? Would there be any negative effect on injector spray pattern? Thank you.
Follow Ups	Mating old style heads to new style lower plenum. - Pearl_TTZ 04:57:43 12/28/17 I did it on the Na Head Set up.. - Cjw3 06:43:14 12/28/17 Re: I did it on the Na Head Set up.. - Pearl_TTZ 14:35:59 12/28/17
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