About to have dual exhaust put on my full fendered 34 Ford pu that has a hot flathead v8 with Reds headers. I’ll have muffler shop run a couple of feet of 1-3/4” (as recommended by Reds) then bump up to 2” out the back. No muffler. No rear bumper. Can’t find any good pics of ideas where to exit tail pipes. I.e. how far apart? How far should they stick out or flush with back edge of bed? How close to bottom of bed? just don’t want it to look goofy.
I would take a couple of jack stands aligned front to back, set a piece of pipe on them, and move them around to see what looks the best to you. Go a little long to begin with as you can cut them off later. Maybe a couple of inches below the rear lid of the bed? Going to add chrome extensions? A bumper later?
Hello, If your 1934 Ford Pick Up does not have a rear bumper, you might want to reconsider that. Once that is installed, then your pipes should be just beyond the rear edge. As far away from the cab as one can get, as the sound will be loud with no mufflers. Even if you put on mufflers, it will generate some noise. Most of us like hot motor sounds, but the “drone” of the loud sounds gets old fast and one wishes to have a nice big quiet set of mufflers to enjoy the ride and not have to wear ear plugs. Jnaki As far as width apart, follow the straight lines from the exact motor, header outlets to the back. Any bends just slows down the flow and could change the sound. We experimented with length of pipes vs. sound in our 1958 Impala. good for the dragstrip competition... It had mufflers, but as the shorty pipes were just behind the rear tire, it was loud with the windows up. when we had the muffler guy extend it past the chrome rear bumper, we could now hear the motor better and the loud pipes, not so much. Plus, the aroma of exhaust was gone. I am not sure why you are not using mufflers as the open exhaust is going to be loud. Unless you have A/C in your cab and the windows are rolled up, the muffler less pipes will make a loud sound constantly heard in the cab. Hot rods attract attention anywhere they go, but to draw attention by using loud exhaust is just not a good thing in most folks’ minds and ears… YRMV Note: As far as placing them close to the edge of your pickup bed, get them away from the edge as most pipes give off black soot of sorts. The edge of the gate will look like a household fireplace that had smoke and heat coming out and up on to the mantle. Not a good look for sure.
When I fabed my duel exhaust for my "32" with a flatty, I went with 1-3/4 in and no muffler, but left the option to in install two porters in case it was too loud. It sounded great idling and under acceleration. Just motoring around it sounded like a car without a muffler. I would advise to leave enough room to install mufflers if desired. As far as the tailpipes I like mine mounted close to the rails and just sticking out beyond the bumper an inch or two..
I agree with Solidaxle, tails should be under the rear rails at the same angle, ending near the end of the rail. The hard part will be getting them over the axle and around the spring, especially if the truck is low.
Here are the tail pipes I built for @Royalshifter on his 33 roadster to give you some ideas. Getting 2 inch over the axle and thought the rear cross member will be a challenge. This is 1 3/4 and it was a chore. As the cross member holes are for 11/2.
I should have said just past my spreader bar not the bumper. I also used the stock hole in the cross member and drilled the other side to run the pipes through, so they wouldn't be crushed when I bottomed out the spring. It was a PITA to get everything to align.
Sometimes you have to think outside the box, or at least under it. I mounted my rear sway bar on top of the 9" and with the truck as low as it is I ended up running the pipes below the axle on my PU. These are old photos prior to polishing those SS pipes, chroming the bumper and painting the truck but you get the idea. I actually came in handy, they are held on with a v band clamp, so easy to remove, grind down the welds, polish and reinstall.
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