M_Dragan Posted December 4, 2018 Share Posted December 4, 2018 (edited) Hey guys, looking at options for my build. Has anyone tried to install/make 180 degree headers on their v8 swap? I'm doing calculations on how I could move stuff around in my bay to make space at the moment. They sound amazing, any insight would be appreciated! Edited December 4, 2018 by M_Dragan add picture Quote Link to comment Share on other sites More sharing options...
30 ounce Posted December 4, 2018 Share Posted December 4, 2018 At 26:25 minute they start talking about the headers... Quote Link to comment Share on other sites More sharing options...
jhm Posted December 4, 2018 Share Posted December 4, 2018 Are you asking WRT NA (i.e. non-turbo) applications? Also, are you on any of the FB forums? There's a good one for V8 Z's, with guys doing insane swaps and custom fab...."V8 S30 Owners Group". Quote Link to comment Share on other sites More sharing options...
M_Dragan Posted December 5, 2018 Author Share Posted December 5, 2018 20 hours ago, jhm said: Are you asking WRT NA (i.e. non-turbo) applications? Also, are you on any of the FB forums? There's a good one for V8 Z's, with guys doing insane swaps and custom fab...."V8 S30 Owners Group". Yeah I’m in that group, I just thought this would be a better forum to ask this question in Quote Link to comment Share on other sites More sharing options...
M_Dragan Posted December 5, 2018 Author Share Posted December 5, 2018 On 12/4/2018 at 6:54 AM, 30 ounce said: At 26:25 minute they start talking about the headers... Hey thanks! I’m gonna check it out right now Quote Link to comment Share on other sites More sharing options...
jhm Posted December 5, 2018 Share Posted December 5, 2018 The main reason I brought up the FB group is because so many folks there are doing reverse headers for turbo installations. Good luck with it. Quote Link to comment Share on other sites More sharing options...
tube80z Posted December 5, 2018 Share Posted December 5, 2018 There used to be a Z that autoxed with us in central Oregon (Eugene/Bend) that used a circle track system pointing forwards. He had to cut a clearance hole in the strut towers for the primaries to work. He was using a 400 small block versus an LS. We also used to have a Ford GT40 replica that ran a set so I know what you mean about cool sounds. You definitely will want to have good hood ventilation to get both header and radiator heat out of the engine compartment. The video headers are going to have some problems when it comes to removing or putting them on. There needs to be a sip fit or flange (like your second image) between sides or getting them on and off will involve a lot of effort. If you have studs (a good idea) I'd bet they may not work at all. If you have access to a 3D printer head to Thingiverse as they have header modelling blocks and LS headpipe (https://www.thingiverse.com/XeonDesigns/designs, https://www.thingiverse.com/thing:2800881). Hope that helps, Cary Quote Link to comment Share on other sites More sharing options...
M_Dragan Posted December 8, 2018 Author Share Posted December 8, 2018 On 12/5/2018 at 1:08 PM, tube80z said: There used to be a Z that autoxed with us in central Oregon (Eugene/Bend) that used a circle track system pointing forwards. He had to cut a clearance hole in the strut towers for the primaries to work. He was using a 400 small block versus an LS. We also used to have a Ford GT40 replica that ran a set so I know what you mean about cool sounds. You definitely will want to have good hood ventilation to get both header and radiator heat out of the engine compartment. The video headers are going to have some problems when it comes to removing or putting them on. There needs to be a sip fit or flange (like your second image) between sides or getting them on and off will involve a lot of effort. If you have studs (a good idea) I'd bet they may not work at all. If you have access to a 3D printer head to Thingiverse as they have header modelling blocks and LS headpipe (https://www.thingiverse.com/XeonDesigns/designs, https://www.thingiverse.com/thing:2800881). Hope that helps, Cary Thanks for the tips! I’m definitely going to put the flange in between. I don’t see how it would ever come off otherwise lol. I’m going to do a ton of research, in your experience, how much do custom headers usually cost? Quote Link to comment Share on other sites More sharing options...
SH4DY Posted December 10, 2018 Share Posted December 10, 2018 (edited) That was my initial plan (180* headers) but incorporating tri-y's and reverse megaphone collectors. I have the top part of the tri-y's done and the collectors (1-5/8" to 1-3/4" to 2.5" collector entry iirc - I haven't messed with them since the summer). I have room between the pan the subframe but I'm still on the fence about actually doing the cross over. It's at least 3' of additional piping. I kept the piping relatively small to help keep the velocity up but now I think with the megaphones and a good x pipe I can maximize the curve/ move it to the right (cam should make steam to 7,500). In hindsight, if I knew I was ditching the crossover I would have gone 1-3/4" -> 1-7/8" step. It's an 11.0:1 Gen 3 LS (383 stroker) with ITB's. Edited December 10, 2018 by SH4DY Quote Link to comment Share on other sites More sharing options...
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