Rusty4x4 Posted April 20, 2007 Share Posted April 20, 2007 (edited) Is it serious that the Thorley header (THY-464-2) "Does not fit 5-speed models with Hydraulic Clutch" http://www.dougthorleyheaders.com/details_...ProductID=14111 Folks, who installed it, what do you say? Don't you have hydraulic clutch (if M/T)? Rusty4x4 Edited April 20, 2007 by Rusty4x4 Link to comment Share on other sites More sharing options...
88pathoffroad Posted April 20, 2007 Share Posted April 20, 2007 They're ALL hydraulic clutch systems. Funny, that's the first time I've heard that one. Yes, people with an MT have installed Thorleys. MaritimeMan is one. Martin (mws) is another. Link to comment Share on other sites More sharing options...
mws Posted April 20, 2007 Share Posted April 20, 2007 I have installed two sets on 5 speeds, but both were model 464-1's on '87/'88 pathy's. So that is probably not relevant to your question. Link to comment Share on other sites More sharing options...
SteeevO Posted April 20, 2007 Share Posted April 20, 2007 i also have them Link to comment Share on other sites More sharing options...
wheel366 Posted April 21, 2007 Share Posted April 21, 2007 Me too. Link to comment Share on other sites More sharing options...
unccpathfinder Posted April 22, 2007 Share Posted April 22, 2007 (edited) i have 95 "auto" thorleys on my 87 with no issues...they may be concerned with skin temps and it getting close to the rubber line and are just use that as a disclaimer if u burn thru the hose and loose the clutch... Edited April 22, 2007 by unccpathfinder Link to comment Share on other sites More sharing options...
dmag23 Posted May 3, 2007 Share Posted May 3, 2007 I have installed two sets on 5 speeds, but both were model 464-1's on '87/'88 pathy's. So that is probably not relevant to your question. MWS - The stock manifold on the driver side has two screw in connections. One leads to the EGR valve and the other one leads to the air tube that ends up feeding the catalytic converter. Does the Thorley 464-1 come with both those fittings? Can the 464-1's be installed without lifting the motor up off the mounts? Is the long tube header (464-1) better for low end torque than the short tube header (464-2)? Trying to make a decision if I should go with the long tube or short tube header for my '87, 5-spd Pathfinder. Link to comment Share on other sites More sharing options...
mws Posted May 7, 2007 Share Posted May 7, 2007 MWS - The stock manifold on the driver side has two screw in connections. One leads to the EGR valve and the other one leads to the air tube that ends up feeding the catalytic converter.Correct.Does the Thorley 464-1 come with both those fittings? Yes. However, they can be a bit of a bear to connect up! Very little room in there, so take your time and use extreme care not to cross thread or tear up the threads. It helps to completely disconnect the air tube so you can align it properly. And disconnecting the stock parts can be a bear. Getting the EGR pipe out of the stock manifold was a real challenge for us. We disconnected the pipe from the EGR itself and removed the manifold with pipe attached. And then spent several days getting it to crack loose. Lots of PB, heat, and patience. Can the 464-1's be installed without lifting the motor up off the mounts? Yes. Is the long tube header (464-1) better for low end torque than the short tube header (464-2)? In general, long tubes are always better, but it is only an incremental increase. Link to comment Share on other sites More sharing options...
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