Mack B-Model Dual Exhuast Kits?

[dawnhousemovers]

Hello,

I have a Mack B-model i am currently starting to restore. I am looking for a website that i can order a dual stack kit for this truck. It has a stock single exhuast on it and i am looking to put dual chrome stacks on it.

I have found many sites where i can buy the actual stacks but not any that i can but the kits to adapt the dual stacks.

any info would help.

[Speed]

Try Iowa 80.com-they sell dual stack kits in several different pipe sizes.

Speed

[Freightrain]

Pipes shouldn't be a problem, 4" stuff is available. How you go about mounting it will be the question.

I put duals on my B model, but I wanted it to look "factory". I made a sketch of my passenger side mounts and had local fab shop bend me up duplicates, but reversed. I then bolted the lower mount to frame, and installed upper mount to the cab using existing holes for hose hangers(just like passenger side). I made my own "Y" pipe, but you can buy them too.

There are other ways of doing it, but mine looks like it came that way. The only major change was removing the 50 gal drivers fuel tank and replacing it with a 40 gal passenger tank(which I had extra). This makes the needed room in rear of cab for pipe and mount. Others run theirs above the frame, across rear of cab. Don't think I have an actual picture of my set up. I could get some if you like.

[Ironman]

I'd like to see that too Larry.

I'd like eventually do a dual exhaust system too

[B61TENDT711]

Duel stack's sounds spendy But i like the look of it

Mike

[Speed]

Duel stack's sounds spendy But i like the look of it

Mike

They could be,depending on where you shop and how much of the work you can do yourself. I priced a full house dual stacks set up for the EH through IOWA-80 and Virgo Fleet a while back,and it came to almost $1,000.00 in parts,and that didn't include building/modifying brackets etc. It's possible to do a nice job for maybe half of that if you pick and choose components,shop through more than one vendor and do some fabricating rather than buying some parts.

Speed

[B61TENDT711]

I like the sound of "half the price" . . .

Mike

[Pete]

Check out truck exhaust specialists.There are couple around here,they make the stuff while you wait.

Pete

[Freightrain]

I think my 4" x 96" stacks were less then $200 each from local place. The stuff underneatch wasn't much, the "Y" I made from two 90* bends. The brackets got made for cheap money. I already had one pipe on the truck, so adding the second wasn't too bad. I already had the extra fuel tank, so that didn't cost anything.

I'll get some pics of everything on mine sometime this week and get it posted for all to see.

[Lmackattack]

You can use R model Exhaust hangers and then fab up the exhaust from pipes found online. I was going the route of dual stacks but went with a single instead. What I did to get dual stacks was this.

pipe came up between the frame rails to a "T" then the pipe ran across the top of the fram to each stack. Worked good but I went back to a single..

Trent

[Freightrain]

Ok, so I went out and was wrenching on the B to get the "new" electronic speedo put in it(another story), I took some shots of my exhaust. Some are kinda dark(I'm used to working in the dark).

Passenger side:

Duplicate on drivers side:

The shorter 40 gal tank is mandatory:

The upper mounts:

The homemade Y pipe:

From the rear:

I like the overall look as it looks like it was made that way. No cobbled up brackets, it looks the same on both sides. Ya, it makes no difference to anyone but me, but hey, it's mine.

[B61TENDT711]

WOW looks awsome !

Mike

[Ironman]

Nice work Larr

I'm gonna try and make mine look that good.

[JerseyBoy77]

Agreed that is AWESOME!! Thanks for sharring those pics!