Jon89le Posted September 28, 2003 Report Share Posted September 28, 2003 Im going to be doing this 'swap' next summer on my car and im trying to gather some info. I know the manifolds on the 3.1s are basically impossibly to hand-port but how are the 3x00 intakes? Im asking about upper and lower. Is there a difference between the 3100 and 3400 manifolds? Thanks for any help. Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted September 28, 2003 Report Share Posted September 28, 2003 3100 and 3400 manifolds are the same. They are also, like the 3.1Ls, almost impossible to hand port the entire lenght of each runner........ Robby Quote Link to comment Share on other sites More sharing options...
Jon89le Posted September 28, 2003 Author Report Share Posted September 28, 2003 Alright, thanks... Quote Link to comment Share on other sites More sharing options...
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