Gettin ready to try my hand at puttin together my exhaust system. The 460 is .030 over with mild cam, 750cfm carb with sanderson headers. I have bought 2.5 dual exhaust kit and "X" pipe, a 2into1 2.5 into 3" "Y" pipe all from jeg's. I'm not sure if dual will work thats why I got the 2into1 Y pipe, was thinking about runnin exhaust on passenger side. Anybody got any idea's/pictures?

 

I guess I'm unsure why you wouldn't just run the dual exhaust all the way out the back after the X-pipe?

When I ran my headers I had bought the mufflers and tips already. Took it to a local exhaust shop that does custom work. They changed me $250 to run 2.5" pipe the rest of the way out on both sides

 

this is how the exit. I know some states require you to exit past the rear axle

 

1955 F250 stock front end, stock steering box, driver side sanderson header dumps down behind motor mount toward oil pan to clear steering box, was thinking it would be easier to come out of driver side header under oil pan and down passenger side with both pipes exiting either in front or rear of rear wheel. I still may run out the back, depends on how many bends, I'm guessing the less bends the better. Got the "Y" pipe, thought maybe it would be easier once I came under the oil pan and brought the passenger side together than changed over to one 3" pipe back and out.

 

That makes sense...I've seen them run under the oil pan before, many stock exhausts ran like that.

You mentioned X-Pipe so I assumed you had spot for it, but by running down one side like you mention, probably won't have room for that.

 

Kevin, you need to look at the stock system the factory 460s used. Mine has dual 2 1/2" pipes to the muffler. Ford ran the left pipe under the back end of the pan, then the two run down the right side to clear the front tank.

 

Right...seen them ran that way from factory.

 

Well, I'm not sure, I suppose I could make the "X" pipe work, stagger the mufflers and have duals come out one side, or cross one pipe back over and bring it back out on driver side two mufflers instead of one. Kinda lookin for ideas. Would there be an advantage to running dual versus a single(2 into 1)? Still thinkin less bends would be better.

 

Well I'm no exhaust expert, and I think to really know you'd have to run both on a dyno to see exactly which is better from a performance standpoint.

I didn't catch what engine you were putting into your 55, but I think unless you're going high performance and really wanting to push some exhaust, you wouldn't notice much difference with or without the X pipe or if you run true dual all the way or go with 2 into 1 muffler.

There are some aftermarket mufflers (Flow Master, Magna Flow, etc...) that make some 2to1 mufflers that sound pretty good. Banks also makes a system for the new trucks that probably out flows them all. Flow Master also makes and 2 in and 2 out single muffler if you wanted to maintain the dual outlet look.


Edit: of course it's a 460 it's right in the tread

Mine was originally ran down the passenger side, had 2 cats and 2 glass packs and then went over the rear axle and exited out the back....you could ether go under the bumper or behind the rear tires.

Once you get it all clear of the tranny.....you can pretty much take it anywhere you like. All preference really. And some laws....some locations require you to exit past the rear axle.

 

Yep, 460, stealth intake, 750 holley, nuttin radical, just a project I've been workin on for a long time. I won't be burnin up the roads, just want good sound/performance.

 

Hmmm...sounds familiar

 

Kevin, I designed a system for my 77 F150 that I put a 390 Camper Special engine in. The system went back on both sides until the left side cleared the transmission pan. From there it crossed under the extension housing to the right where I had him put an H in the pipes, two Corvair turbo mufflers vertically oriented with the left bank one in front of the right bank one, dual tailpipes that exited on a 45 right in front of the bumper. Sounded very nice, particularly when you stood on it, then it would bark nicely.

 

That sounds very similar to how the PO had the exhaust ran on my truck when I bought it. Except it exited under the rear bumper, which I'm not to crazy about. I alway thought that it would be simpler to have routed the left side just a bit further back prior to crossing over. Where it was situated would require dropping the exhaust if you needed to pull the tranny. If it had been back another 4-5", under the slip yoke maybe, then the tranny would clear.

 

That was an issue on mine, but on the 77 the cross brace for the radius arm bushings sits under the front part of the transmission between the converter housing and the pan. Between that, the steering box and the front fuel tank you really don't have a lot of room to play with on a regular cab pickup. I tried to buy a super cab from a fellow I worked with that had a worn out 360, but he ended up donating it to a scout camp.

 

I love the old FE engines....had a 390 in my 67 ford (car).