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View 1930u's profile Entries: 231
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01-29-2012 05:47 PM More header work
I went on vacation after Christmas and didnít get back until mid month. Just getting back to work on the Plymouth. All my parts were waiting on me when I returned. After working today, Iím much more confident that the big block Chevy headers are going to work now.

The Plymouth frame rails narrow from the rear to the front like many other 30ís cars. This causes some difficulty trying to lay out the header side pipe arrangement. I donít want the collectors and side pipes to extend out horizontally to far from the frame. I also want the side pipes centerline to be at near the same height as the bottom of the frame rail. I also have to make sure the header front tube doesnít interfere with the front tires and fenders when I turn stop to stop.

This was hard to figure out by just eye balling it so I made an adjustable holding fixture to clamp the collector in place at the right height and distance from the frame. It adjusts horizontally and vertically. Once I found the right spot I locked the collector in position and Iím building the headers from there. This worked really well allowing me to cut the header primary tubes back in a controlled manner in order make up and fit the transition pieces between the primary tubes and the block flanges.



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  [Entry #141]

12-26-2011 06:04 PM 1930u the profile
Per my previous entry- I set the body back on yesterday so I can fab up the headers. I want to make sure that all looks right and I want plenty of clearance around the frame and body. I rolled it outside today to get a better look at it all. Over all Iím happy with the profile. Currently the engine is raked back just a bit more than I care for but I have plenty of adjustment via slots on the bell housing mounts. While the body is on I plan to re-adjust all the suspension. The back end will be set down a little over and inch.


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  [Entry #140]

12-24-2011 08:59 PM 1930u Flying the body
Well today between relatives and friends stopping by I managed to set the body on in order to finish making the headers. I'm trying to keep things as clean as I can and not chip everything up. I figure the body will be on and off at least 3-4 more time before I'm ready to paint. Necessary evil I guess.


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  [Entry #139]

12-17-2011 02:44 PM 1930u more 392 Headers
I spent a little more time on the headers today. At this point its does look like the Big Block headers are going to work out fine but Iím still waiting on four 2-1/4Ē 180 degree SS mandrel bends. For now I am using mild steel to mock up my transition pieces and will copy them over in stainless when the pieces arrive.

Iím still in the planning mode and most of this is learn as I go along. Before I do anything else Iím going to set the body back on to make sure all looks good. I donít want the side pipes to far out from the frame and body. I will also have to decide if I want the side pipes level with the ground or if I want to stay parallel to the rake of the body and frame. I also have to make sure the front header tubes do not interfere with front wheels.





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  [Entry #138]

12-15-2011 08:32 PM 1930u 392 Headers
Here's a shot of the big block Chevy headers that I'm trying to use on the Hemi. I think it's going to work out fine but I'm held up now waiting on some pre-polished stainless mandrel bends.


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  [Entry #137]

Pages (47): 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 [19] 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47


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