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-   -   4-6 drop and exhaust (https://67-72chevytrucks.com/vboard/showthread.php?t=781454)

Oldironracing 02-14-2019 09:42 AM

4-6 drop and exhaust
 
Any problems with the exhaust being run under the trans crossmember with a 4-6 drop?

blazer2007 02-14-2019 10:04 AM

Re: 4-6 drop and exhaust
 
I,d go over, looks ugly with pipes hanging down anyway

BR3W CITY 02-14-2019 11:34 AM

Re: 4-6 drop and exhaust
 
I'm a little lower than that and my setup was run below the xmember (until I could built a raised one). Its fine most of the time, but running it above would gain ~3" of clearance that would be nice to have.

Also, if you run it below you can juuuust about see it from the side of the truck.

Oldironracing 02-14-2019 03:09 PM

Re: 4-6 drop and exhaust
 
Have it up and over right now but worried about the fuel line is about 1.5 inc away from it and the trans cooler lines. Thought about useing some heat sleeves on the lines. Thoughts on this?

68Stepbed 02-14-2019 06:54 PM

Re: 4-6 drop and exhaust
 
Above the crossmembers.....
https://i.hmjimg.com/images/2018/09/...001-005.md.jpg
Below the crossmembers........You decide.
https://i.hmjimg.com/images/2018/02/...0618078.md.jpg

SCOTI 02-14-2019 07:05 PM

Re: 4-6 drop and exhaust
 
Quote:

Originally Posted by Oldironracing (Post 8466110)
Have it up and over right now but worried about the fuel line is about 1.5 inc away from it and the trans cooler lines. Thought about useing some heat sleeves on the lines. Thoughts on this?

I would keep it above the x-member & wrap the exhaust pipe where it's close to the fluid lines along w/wrapping the fluid lines where they're close to a heat source.

Oldironracing 02-14-2019 11:14 PM

Re: 4-6 drop and exhaust
 
Any suggestions on what to wrap the lines with? That work so.

SCOTI 02-15-2019 10:57 AM

Re: 4-6 drop and exhaust
 
Quote:

Originally Posted by Oldironracing (Post 8466384)
Any suggestions on what to wrap the lines with? That work so.

DEI heatshield products work on my dually. I wrapped my airlines & fuel lines where they run in close proximity to my exhaust. Their exhaust wrap is commonly used for turbo apps....

http://designengineering.com/

Stormin08 02-15-2019 02:04 PM

Re: 4-6 drop and exhaust
 
my current crossover pipe hangs below my front cross member. it also far enough back, that being on air...this will get refabbed.

i plan to extend the Y inlet on the pass side to raise the pipe, then shorten the driver side up pipe.

Oldironracing 02-16-2019 10:40 PM

Re: 4-6 drop and exhaust
 
Ran over the crossmember. Looks great. Ordering heat sleeve. Thanks for all the help.


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