TexasQuest Posted February 24, 2014 Report Share Posted February 24, 2014 What are the differences between the two and can you use a Magna M6 head with the TBI intake manifold? Link to comment Share on other sites More sharing options...
TainterRacing Posted February 24, 2014 Report Share Posted February 24, 2014 Magna head mmmmmm not sure it can be used with the tbi intake unless you have an adapter one of the coolet passages is larger and it May leak. well I guess you could try just not sure lol Link to comment Share on other sites More sharing options...
scott87star Posted February 24, 2014 Report Share Posted February 24, 2014 Yes the right hand water port on the intake side is the same size as on the left on a magna and the stock TBI won't cover it. You have to TIG some material in there or make an adapter plate. The magna's flow more because the SSR (short side radius) is much better on the M6 and M7 heads. The M28 heads really don't have a radius, more like a cliff. Link to comment Share on other sites More sharing options...
TexasQuest Posted February 25, 2014 Author Report Share Posted February 25, 2014 What are the differences in the M6 and M7 heads? I've never heard of the Magna M7 head? Link to comment Share on other sites More sharing options...
scott87star Posted February 25, 2014 Report Share Posted February 25, 2014 I don't think there is a difference between the M6 and 7 but the aussies would be that last word on that. http://picturehosting.com/images/oblique9881/m7.jpg Link to comment Share on other sites More sharing options...
TexasQuest Posted February 25, 2014 Author Report Share Posted February 25, 2014 Been doing some research over on sigma-galant and apparently there are magna heads all the way to M9. I believe they have different valve sizes and possibly port differences thru out the M heads.. Link to comment Share on other sites More sharing options...
importwarrior Posted February 25, 2014 Report Share Posted February 25, 2014 (edited) Check out the m8 astron II G54B heads. http://www.sigma-gal...hp?f=85&t=10359 http://110.174.47.143/SG/Head/M8/M8-chamber.jpg Edited February 25, 2014 by importwarrior Link to comment Share on other sites More sharing options...
Funky Phil Posted February 25, 2014 Report Share Posted February 25, 2014 I don't think there is a difference between the M6 and 7 but the aussies would be that last word on that. http://picturehosting.com/images/oblique9881/m7.jpg yummmmm Link to comment Share on other sites More sharing options...
Malykaii Posted February 25, 2014 Report Share Posted February 25, 2014 My buddy has a magna head with tbi. Like stated, he had to have someone weld metal onto the intake to cover the coolant passage and I had to custom cut a gasket for this. He plans on using mpi at some point. The intake passages are larger than the passages on the tbi intake. My bet is that to optimise the flow of the head you would need a well ported intake and throttle body paired with larger intercooler tubing or a magna intake. Link to comment Share on other sites More sharing options...
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