Dual exhaust

[Snowy Rivers]

Hi folks and Merry Christmas

I am rebuilding an 84 K5 (Diesel).

Using the frame from the 84 and installing the body off an 85 (great shape) and using the front clip from a 1990 (later style) GMC grill and side by side lights.

Then a good engine tranny from an 87 Burb (6.2)

I am looking for a nice large (3 inch) dual exhaust kit that will fit the K5

I have all the factory 6.2 stuff still on the chassis but its well used after all these years.

Does anyone make a decent BOX Kit for these trucks any more.

I dont care if I have to do a little fitting and welding. I have a shop full of tools, wire welder etc

Any info would be sweet.

Thanks

Snowy

 

[Diesel Driver]

i think summit makes a kit for the gassers but not diesel ( maybe it will mount up i dont know).. i had mine custom made 2.5 inch duals

 

[AJMBLAZER]

3" dual would be unnecessarily large, even if you turbo'd it. 3" single is fine, less pipe, and less crap under the truck. Even just a 2.25-2.5" dual setup that is mandrel bent would be better than what you have now.

 

[Snowy Rivers]

There is plenty of room under the truck for a 3" system.

The 6.2 will probably not benefit a lot from anything over 2-1/2" but it will help with the proper mufflers to stop the nasty "Rap" that these engines make through a smaller system.

I really dont want to install a ballance tube as it clutters up things. (In case the gear boxes need to come out)

I may just carefully cut the old pipes off at the muffler with a Sawzall and then have them duplicated at the local muffler shop.

If all the shop has to do is bend the pipe and not get under the rig, the cost should be fairly decent.

I have the body off the truck at present so access is a snap.

I want to do this stuff before the body goes back onto the truck, as I hate crawling around under the rig and wrestling with pipe and stuff.

Thanks for the info

Snowy

 

[RJB44]

I wouldn't waste your time or money with dual exhaust for your truck. I never understood why people put duals on the blazer/jimmy/suburbans. Not only is it unsafe, but also looks like crap. Now I'm talking about the straight back tail pipes. The L pipes on each side can fly. This is just my opinion and comes from someone who isn't much into customizing anything more then a adding a 4' inch lift and some 35 inch tires.

 

[AJMBLAZER]

Summit, LMC, and others sell dual exhaust kits meant for non-cat equipped gassers. Those should bolt onto ours since the exhaust manifolds exit in the same place relative to the gasser's exhaust manifolds.
However they are not 3". Think 2.25 or 2.5".