lester Posted July 19, 2010 Share Posted July 19, 2010 I have a 78 280z 2+2. I just bought a brand new head for it because the old one had a bolt stuck in between one of the valves. While we have it all apart we thought it would be a good idea to put a header on it. Is this a good idea? Will it help performance and fuel millage? Or should i stay with the stock manifold, which had a small leak in it. Quote Link to comment Share on other sites More sharing options...
jbehuniak Posted July 19, 2010 Share Posted July 19, 2010 go for the header!!!!!! MSA has pretty decent prices. I got the MSA header for my 76 2+2 and love it!!!! My exhaust is the 6-2-1 with the 2.5" outlet to a 2.5" dump pipe with an electric cutout, then the twice pipes system. It sounds great with the dump closed and when its open it is just good ol fun. I went with the header because I had to change my intake/exhaust manifold gasket so I already had everything apart. The other reasons is it has better flow rate and my theory is that it is going to let heat get out of the head/block easier and not store it in a 25lb manifold. The new header is about 10lb so you're saving weight and adding life to your engine in my opinion. Quote Link to comment Share on other sites More sharing options...
getoffmyinternet Posted July 19, 2010 Share Posted July 19, 2010 The conundrum here is header v. leak?? Quote Link to comment Share on other sites More sharing options...
MikeBZ Posted July 20, 2010 Share Posted July 20, 2010 The conundrum here is header v. leak?? I agree, if your stock manifold has a leak get the header. But on a stock L6 you might not notice much of a performance gain with the header. (compared to V8 cars when you install headers) Quote Link to comment Share on other sites More sharing options...
lester Posted July 20, 2010 Author Share Posted July 20, 2010 alright sounds good.. i already have a header and went and ordered the gaskets tonight...cant wait to have my z back running again Quote Link to comment Share on other sites More sharing options...
getoffmyinternet Posted July 22, 2010 Share Posted July 22, 2010 alright sounds good.. i already have a header and went and ordered the gaskets tonight...cant wait to have my z back running again You mean you didn't even wait for our response before making your decision?? Quote Link to comment Share on other sites More sharing options...
lester Posted July 23, 2010 Author Share Posted July 23, 2010 ha well i already had the header...juss needed to know if i should get the regular manifold gasket or the header one Quote Link to comment Share on other sites More sharing options...
palauoriginal Posted July 23, 2010 Share Posted July 23, 2010 pics should be posted as punishment haha Quote Link to comment Share on other sites More sharing options...
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