exhaust question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TotalChevy1 · 05-01-2007, 06:08 PM

I'm in the process of putting a dual exhaust system that dumps in front of the rear tires on a lwb 72. I was hoping to include a crossover but my concern is if I choose that option the system will have to be dropped below the frame which isn't an option. All I want to see is the tips dumping at the tires. Has anyone been able to put a crossover and have the system tucked under the truck so you can't see it from the side. Pics would be great

piecesparts · 05-01-2007, 07:48 PM

There was a truck on the 2000 Power Tour that had his exhaust running throught the frame at the front under the floor boards and then run along the outside of the frame and turn out at the wheel wells. He had built round tube gussets into the frame in that area for support.

1LoC10 · 05-01-2007, 07:51 PM

but thats not giving him a crossover pipe

1LoC10 · 05-01-2007, 07:56 PM

here is mike nutts truck

COACHMEASON · 05-01-2007, 08:05 PM

Is that 2.5 or 3 inch pipe...really like how it is dumped behind the tires..I am going with 3/5 drop...anything I need to look out for? think I will need a diff trans crossmember??

TotalChevy1 · 05-02-2007, 04:06 PM

ttt...any pics from lwb with exhaust in front of tires with a cross over. Any pics would be appreciated. The muffler shop I'm going to use said it can't be done.....

Thanks

bryanw1968 · 05-02-2007, 06:55 PM

It can be done. I don't have any pics of my old system but I had it come from the headers outside the frame rails under about where the seats are then out in front of the tires.

bryanw1968 · 05-02-2007, 06:58 PM

Whoops I found a pic. Look close and you'll see the tip coming out underneath the step in front of the tire.

piecesparts · 05-02-2007, 08:19 PM

Quote:

Originally Posted by 1LoC10

but thats not giving him a crossover pipe

Yes it does, you can still put in a cross over pipe before the pipes go through the frame.

mike nutt · 05-02-2007, 09:09 PM

Quote:

Originally Posted by COACHMEASON

Is that 2.5 or 3 inch pipe...really like how it is dumped behind the tires..I am going with 3/5 drop...anything I need to look out for? think I will need a diff trans crossmember??

that is 2 1/2" pipe , you could run 3" , but it will get close with a 5"drop . mine has 7"s of drop right now . make sure that the bed is mounted , shocks,etc. space gets tight quickly , so make sure every thing is were you want it. good luck , mike

05-01-2007, 06:08 PM	#1
TotalChevy1 Registered User Join Date: Mar 2007 Location: Phoenix, Arizona Posts: 175	exhaust question I'm in the process of putting a dual exhaust system that dumps in front of the rear tires on a lwb 72. I was hoping to include a crossover but my concern is if I choose that option the system will have to be dropped below the frame which isn't an option. All I want to see is the tips dumping at the tires. Has anyone been able to put a crossover and have the system tucked under the truck so you can't see it from the side. Pics would be great __________________ 1972 c-20, 350/350, dana 60 w/456 gears(no Posi) Last edited by TotalChevy1; 05-01-2007 at 06:08 PM.

05-01-2007, 07:48 PM	#2
piecesparts Parts and more parts Join Date: Nov 2003 Location: Lebo, Kansas (middle of nowhere Posts: 6,821	Re: exhaust question There was a truck on the 2000 Power Tour that had his exhaust running throught the frame at the front under the floor boards and then run along the outside of the frame and turn out at the wheel wells. He had built round tube gussets into the frame in that area for support.

05-01-2007, 07:51 PM	#3
1LoC10 Insert Title Here Join Date: Feb 2006 Location: Dyer, Indiana Posts: 5,679	Re: exhaust question but thats not giving him a crossover pipe __________________ BOBBY _69 SWB_ 1000 pics of 67-72's>> http://s193.photobucket.com/albums/z...-72/?start=all <<

05-01-2007, 07:56 PM	#4
1LoC10 Insert Title Here Join Date: Feb 2006 Location: Dyer, Indiana Posts: 5,679	Re: exhaust question here is mike nutts truck __________________ BOBBY _69 SWB_ 1000 pics of 67-72's>> http://s193.photobucket.com/albums/z...-72/?start=all <<

05-01-2007, 08:05 PM	#5
COACHMEASON Keep On Keepin' On Join Date: Apr 2006 Location: Oklahoma Posts: 417	Re: exhaust question Is that 2.5 or 3 inch pipe...really like how it is dumped behind the tires..I am going with 3/5 drop...anything I need to look out for? think I will need a diff trans crossmember?? __________________ 07 Avalanche Z71 92 Mustang 5.0 GT (Triple White w/ 53,000 miles) 72 SWB Chevy w/ PS, AC, 350/350 Current Project ....In paint shop getting body/paint work done (Corvette Velocity Yellow)... http://67-72chevytrucks.com/vboard/s...d.php?t=157669

05-02-2007, 04:06 PM	#6
TotalChevy1 Registered User Join Date: Mar 2007 Location: Phoenix, Arizona Posts: 175	Re: exhaust question ttt...any pics from lwb with exhaust in front of tires with a cross over. Any pics would be appreciated. The muffler shop I'm going to use said it can't be done..... Thanks __________________ 1972 c-20, 350/350, dana 60 w/456 gears(no Posi)

05-02-2007, 06:55 PM	#7
bryanw1968 Senior Member Join Date: Jul 2006 Location: Leander, Texas Posts: 850	Re: exhaust question It can be done. I don't have any pics of my old system but I had it come from the headers outside the frame rails under about where the seats are then out in front of the tires.

05-02-2007, 06:58 PM	#8
bryanw1968 Senior Member Join Date: Jul 2006 Location: Leander, Texas Posts: 850	Re: exhaust question Whoops I found a pic. Look close and you'll see the tip coming out underneath the step in front of the tire. Attached Images



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