makes one immediately think maybe j/k exhaust is a far easier trip , on F /G
405 F had something like J/K but apparently no exhaust heat , just water .
Either none or water works for me , J/K probably fits F , blank off heat , 405 F exhaust so rare I am sure no one has seen j/k exhaust next to it , to see what changed . “ probably” just the exhaust heat aspect , if they had 405 casting patterns already ,from 1960 , would not start from scratch for only a very few cars .
Similarly max HP 61/62 with short rams and big exhaust , we know little detail of them . I have a 62 405 short ram , has heat , might be J K exhaust ; don’t know what PO did .
Put together in early 90’s I think . Manifold visually looks like J ( from memory ) . I wonder what that Big Red factory 405 62 had for exhaust ? vaguely remember water heat on that ? but did not pay attention to exhaust
You have saved me a huge hassle with this post , on the headers , thank you . You have amazing patience and skill to do that ! Although plymouth is swb … may not be same issues everywhere
nice work …
FYI , I put a 392 in F , in process , ( long process— as in move master cylinder to other side of column) we used those after market block hugger stainless headers ( nice pieces , cheap on ebay ) but decided to go under steering ,under the frame all the way , as dump is straight down, right near tie rod . No way to fit 90 bend there above steering —- I see you are on top . i have done that before ( exhaust under frame ) to get large pipes , often wonder about the factory fixation of getting pipes way up higher than rear axle ., that is what sets real ground clearance .
I wonder about 68-9 TNT 440 HP / six pack exhaust too , they are now reproduced , but unsure where outlet is / works in 300 .
Huge step up
over stock 300 exhaust , really lame log manifold
Ever notice Toyotas (? Camry) going down the road — rear exhaust pipe much lower than suspension , that is extreme , sagged or in wrong ?
Now who has a J/ K exhaust pair ?
right …
John-
This is my 61 Savoy. We used off the shelf C body headers. We cut them up into many pieces and welded them back together to fit. It was a lot of work. It left us with no way to route the pushbutton shift cable to the transmission given the headers. So we terminated a B&M shift cable at a bracket, transitioned to a rod to pass in-between the header tubes that connects to the 727 with modified shift spring. As to manifold brackets I didn’t want to chance stressing the mounting points on the RAMS, it may not need it but it was not difficult to do.
Danny Plotkin
i have a plan like that on an F —I contacted TTI their headers are listed for 62 up C body ( odd way to put it) but they say they have no experience with 60-61 “ don’t know “ “ never did it”
To me , identical side space , 60-61 larger if anything lengthwise , changes there are quite involved and you have to think about it , as engine is in same place re body firewall , ( which is the same ) yet some ?4” less wheelbase so control arms have to be moved back on stub frame . That tightens up header clearance a lot at control arm . . And steering box . There also may be some kind of major change in steering box mount to frame , 60-61 mount to side of frame in lwb at least ,? swb?
but somewhere around 62 or 63 up K frame is used too .
Anyone know when this happened ? after market steering guys ( Borgeson) do not support 61 back , but seem to support 62 ? Talking to them went no where
i would like to put TTI headers listed for 62 in a 60 , unless there is another path ?
I do not think end of ram manifolds need any support . look at size of that casting many bolts to head . Have never seen one break . . It is thicker metal than 727 torque flite case ., Function of heat tubes is heat . Water cooled ones ( 405 ) did not have support ? not sure of that though . Can’t hurt but not needed imho .
Did you use commercial headers ? stock ram log manifold is truly restrictive , why 405 J K and max wedge have what they have . … has to be 20-25 hp better
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