jbq Posted February 14, 2015 Share Posted February 14, 2015 hi every one , I have a question about 350z , what is the difference that made on 350z model from 2007 and above ? . im not sure correct me if im wrong , does the 2007 have 2 intake manifold ? and what it means by HR in VQ engine ? Quote Link to comment Share on other sites More sharing options...
dexter72 Posted February 14, 2015 Share Posted February 14, 2015 The HR stands for High Rev, It has a different valve train setup and the front of the engine timing cover is different. I think that engine was only out for a couple of years. It's a harder engine to find and more expensive to buy, then the standard 3.5l Your going to have to research exactly what the differences are between years. I know that they added a different intake for the duel throttle bodies but not sure what year it was. Either the Orange or Yellow anniversary Z's were the first ones with the duel throttle bodies. Then a year later all 350's engines were made that way. Quote Link to comment Share on other sites More sharing options...
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