4" Exhaust Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

legendman · 11-29-2013, 02:00 PM

Anybody running 4" over the axle?
Ran into a couple snags myself, 4" pipe won't clear the shock on the r/s and I was wonder what others have done for their exhaust.

Might have to exit in front the rear tires.

**Dieselwrencher** · 12-02-2013, 09:16 PM

How bad is it hitting your shock? On the burb I did it was so high that it didn't hit the shock. On my brother's 88 V30 it had 4" on it and I think the tail pipe rubbed the shock, but he never had a problem with it.

legendman · 12-02-2013, 11:22 PM

Quote:

Originally Posted by Dieselwrencher

How bad is it hitting your shock? On the burb I did it was so high that it didn't hit the shock. On my brother's 88 V30 it had 4" on it and I think the tail pipe rubbed the shock, but he never had a problem with it.

With a rear tank mounts and the shock it's become a issue, I might exit out the side in front of the wheels for now.
The see what I can find for a GMT400 body style exhaust like you suggested.

Funny thing, I had a 1996 K3500 6.5L dually a while back and I used a 97 powerstroke exhaust on that, I think it was 3.5" inch.

burnitg · 05-03-2015, 03:19 PM

Guys - I don't mean to hijack your thread; but, does anyone know of a source for a 4" universal exhaust kit? I'm putting a 4-53T Detroit in my '72 GMC. No one makes a kit for this application...

Thanks,
Burnett

**gerfunken** · 05-04-2015, 05:56 PM

Quote:

Originally Posted by burnitg

Guys - I don't mean to hijack your thread; but, does anyone know of a source for a 4" universal exhaust kit? I'm putting a 4-53T Detroit in my '72 GMC. No one makes a kit for this application...

Thanks,
Burnett

So, I used eBay, with a search string like "Assorted exhaust mandrel bend" and ended up getting a box of 10 or so pieces of 3" that I could build my down-tube and intercooler piping from. I think it ran about $30 +shipping.

C20scott · 05-12-2015, 12:42 AM

Hood stack!

12-02-2013, 09:16 PM	#2
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,135	Re: 4" Exhaust Question How bad is it hitting your shock? On the burb I did it was so high that it didn't hit the shock. On my brother's 88 V30 it had 4" on it and I think the tail pipe rubbed the shock, but he never had a problem with it. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

05-03-2015, 03:19 PM	#4
burnitg Registered User Join Date: Nov 2009 Location: Black Hawk, CO Posts: 215	Re: 4" Exhaust Question Guys - I don't mean to hijack your thread; but, does anyone know of a source for a 4" universal exhaust kit? I'm putting a 4-53T Detroit in my '72 GMC. No one makes a kit for this application... Thanks, Burnett

05-12-2015, 12:42 AM	#6
C20scott Registered User Join Date: Oct 2011 Location: antioch, ca Posts: 158	Re: 4" Exhaust Question Hood stack! __________________ 1969 K20, Cummins 12v conversion in progress... Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=574152



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