qwik240z Posted July 23, 2004 Share Posted July 23, 2004 Hope everone is sitting down. I got an email from John yesterday that told me the guy he has gone to for the headers is out for back surgery the next 6-8 weeks. On the bright side that means he's mostly focused on the trans cross-member and the power steering at this point - when he's not working on his primary Jaguar business or his trains. I have been working on an alternative to headers. I picked up a set of Hummer H2 Cast Iron Exhaust Manifolds and after an initial test fit, it seems that the drivers side will fit with JCI mounts if I trim the flange a little. There is one area where the flange is hitting the frame rail. I will trim it this weekend and let you all know. The passenger side is another story. The flange is way too big to fit. I am going to cut off the flange and have a local machine shop make a downpipe to be press fit into the manifold and then weld it in place. I have heard mixed stories about welding steel to cast iron but it can be done. The machine shop guy I spoke to has done many of these types of jobs and feels confident that he can do it so it will last and be leak free. If this works out we will have an alternative to headers that will reduce noise, heat and money. I paid $40 for the H2 manifolds delivered and was told about $100-$150 for the welding job. Less than $200 vs. $800 for the Sandersons. Quote Link to comment Share on other sites More sharing options...
mas28O Posted July 23, 2004 Share Posted July 23, 2004 David you can also use the camaro headers. they are tight but they will fit. Mike Quote Link to comment Share on other sites More sharing options...
qwik240z Posted July 23, 2004 Author Share Posted July 23, 2004 David you can also use the camaro headers. they are tight but they will fit. Mike The drivers side won't fit with the JCI mounts. The passenger side may fit but I doubt it. I will try both the Camaro and the H2 manifolds this weekend and see which will fit better and have a better dump angle. Quote Link to comment Share on other sites More sharing options...
mas28O Posted July 23, 2004 Share Posted July 23, 2004 I do not know about them fitting with the JCI kit. They would fit on my car, Johns, and Lonestar's. Take some pics of the H2 headers. Mike Quote Link to comment Share on other sites More sharing options...
qwik240z Posted August 1, 2004 Author Share Posted August 1, 2004 I worked on the exhaust manifolds today. Sad to say the Hummer H2 manifolds will not work. I hacked them up too. I completely removed the flanges and they still don't fit. They bulge out and hit the steering rod on the drivers side and the dump angle is really off on the passenger side. I also tried the stock Camaro manifolds and they won't work either. I guess I will be going with headers too! Oh Well, it was worth a try. Quote Link to comment Share on other sites More sharing options...
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