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Found 10 results

  1. I just bought some new headers for my 1974 260z, but they run into some transmission coolant lines. Does anyone know if I would be able to bypass these lines? Or what I could do to get around this problem? It's an automatic and I have removed the air conditioning. Any information would be greatly appreciated. The two horizontal lines in the second picture are what I am talking about.
  2. I recently had headers and a new exhaust installed on my late 1977 280Z coupe and since then I have had a carbon like residue on the tailpipe and bumper. I understand this is referred to as running rich, are the two related or is this just a coincidence. I am not mechanically inclined and do not have the luxury of a garage that I can use to work on my car so I was wondering if there might be something my mechanic did when installing the exhaust system and header that would have caused this condition. He's a great guy and I am not looking to blame him or anything but I want it fixed and was hoping to get any info pertaining to the subject that may be helpful to him when I go back for an inspection. I have read the Cold Start Valve/Thermo Time switch and a couple of other components might be the issue but still wonder if there might be something related to or connected with the header/exhaust installation that might be helpful in resolving this. Thanks for any and all help.
  3. Hi all, wondering if anyone can help out... I am after a twin SU set up for my 240K. Looking for complete set up, manifold, carbs, air cleaner assy etc. ...or will look at individual parts. I am after a set of headers (extractors) any other used performance parts, CAM, WORKED HEAD, etc. Buy for cash, or i do have a small amount of 240k coupe parts i may swap or trade. Please reply here or PM. MANY THANKS, Adam.
  4. Hey guys! Recently bought a 76 280z. It was pretty clear the car had a bad exhaust leak, which I was hoping would be as simple as a gasket. Unfortunately after removing the manifold I discovered a crack. I can't seem to find replacement stock manifolds anywhere, and the few stock options I did see seemed to be around 650 dollars. The MSA 6-1 headers appear to work fine for around 230, But the shape seems off. They are longer with a different shaped flange at the end? My guess is that they connect under the cab rather than where the old manifold connected. Unfortunately the car is at a relatives until I can get it running again. I do not have the time nor money for a full exhaust system swap to the 2.5 pipes or anything like that. What exactly is required to replace this manifold?? HP/sound improvements are not necessary, yet definitely welcomed if the price is right. Any advice or knowledge about doing a direct bolt in replacement would be greatly appreciated. Thank you guys! SIDENOTE: The manifold is N47, with round ports.
  5. Good morning all Z club members, glad to have found this site. I have a 74Z for sale and would like some feedback. It has appx 55000mi, is slightly modified with 3 40dcoe weber carbs, headers, freeflow exhaust, mulholland suspension, chrome wheels. Other than these it's stock, with a little rust. Any suggestions on what to ask? Thanks in advance, Harv Here's a pic
  6. Hello, My first major work on the car and I'm having trouble identifying the head. I noticed the car had a rebuilt engine since there was a tag saying so on the block. Attached is a few pictures. One of the head and another of the intake manifold. There is a N42 stamp on it but looking at other pictures of an N42 head this one appears to be different. HELP?! I don't want to purchase the wrong headers. As you can tell this looks way different than the pics on this auction item: http://www.ebay.com/itm/Datsun-Z-240Z-260Z-280Z-ZX-Rebuilt-N42-Cylinder-Head-/400244055278?pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr&hash=item5d30679cee Last, I included a few pics of some damage to the head I noticed while pulling it off.. How bad of an impact would this have on my car? Would it cause abnormalities? Smoking? Funny, this all started with a head gasket replacement :/
  7. I got to install new headers this weekend! But there is a pinhole in the welding and there is evidence of an exhaust leak:mad: *sidenote* '71 z 4speed stock everything... until now. The hole in the headers is literally about the size of a standard sewing needle I was wondering if anyone else has had any issues with MSA, and how smooth the RMA's are. I plan on calling them tomorrow. I have pictures, I can upload them tomorrow
  8. I bought used headers for my 260z and they seem to line up. The head is square exhaust ports so are the headers. The problem is the intake manafold is 1/2 inch thick and the headers are 1/4 inch thick. How does this work with the circle piece that holds both of these down and together.
  9. I am installing headers, 3 into 2's on my 1974 260z. There are some differences such as the headers do not have the 6 tubes that extend into the exhaust ports, from reading some other treads I think these are the smog tubes. On my original manifold these were cut and welded shut So I assume this means there is no problem with not having the tubes on the headers as I guess the smog is disconnected. Is this correct. The other difference is the original manifold has the tube for the exhaust gas to recycle -the headers do not. What do I do about this. Any suggestions Thanks zdude1967
  10. I am putting on headers and will need to remove the exhaust and carburetor manifold for the new gasket. I want to make the process as simple and successful as possible and want to be able to just bolt the carb manifold back on, start the car and go. Is there any special process for handling the carb manifold, such as storing with the carbs facing upright or any other thing I should know to make carb and manifold removal and re-install successful. Will I need to re-adjust the carbs after the go back on? G
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