Dual Exhaust Photos

[Yankeelights]

Hey, I'm trying to get some ideas for duals on my 79. I'm not sure if I want to look for a double-hump crossmember or not and I'd like to see some dual exhaust photos with and without; if anyone has them.

~ Dave

[Srubydo1986]

ill get mine here soon had to make them tho

[babyJay]

I'm not sure what you're referring to with the crossmember, but hope this helps. This exhaust was on this truck when I got it back in the winter.The headers were laying in the back when I got it, b/c it had no engine, trans, etc. I put 'em back on when I stuck my 350 in. Took these when I was thinking about ebaying it away a couple weeks or so ago.

[liljon285]

my crossmember is completely diffrent.

[dubdeuce80]

heres after one was mounted...



both...had my driveshaft out, hence the bag. and yes i was leaking pretty bad...cleaned that up too

[liljon285]

are those glasspacks? Is that where it ends? How does it sound?

[dubdeuce80]

yes, yes, and LOUD. they were actually pretty clean sounding, not the obnoxious open headers kind of loud. the packs muffled them a bit and made it sound smooth

[Ivan D.]

Originally Posted by dubdeuce80

heres after one was mounted...



both...had my driveshaft out, hence the bag. and yes i was leaking pretty bad...cleaned that up too

Good setup for a street truck, but way too low for anything that goes out in the dirt... Still like it tho, clean and simple.

[Yankeelights]

Wow, thanks for the PICs you guys! That tells me a lot! My crossmember looks like dubdeuce's. Are there any other types of crossmembers that were used on the 73-87s?

So here I am screwing around about the duals & headers and this morning my tailpipe decides to drop off. The muffler looked like it was ready to take the plunge next. With a looming state inspection soon, I picked up a stock tail pipe; an El Cheapo Raptor turbo muffler; extra pipe & hardware after work so the ol' gal will pass inspection. I just finished the install and I was astonished about how restrictive the original cat is; it's almost as quiet as a muffler. It's one of those big ugly flat looking things. I started the truck after cutting the stock muffler off and I'm sure that I could have driven it to work without attracting the attention of the police. THAT thing has GOT to come OFF! The turbo muffler sounds nearly stock with the stock converter.

Tomorrow I'll find out if the turbo muffler made a difference in performance. There's a mile long steep grade on the way home from work and my whimpy 305 2bbl (265,000 miles on it!) labors to achieve a blistering 45 mph up the hill even with 3:73 gears; pisses me off when the FEDEX truck passes me going up the hill every day.

In a few weeks the ol' gal won't be laboring up that hill anymore as I'm freshening up a 406 for a swap. This weekend we're s'posed to have nice weather, so I'll try to get some PICs of this work in progress ... and hopefully not scare anyone away!

Thanks again for the PICs!

[Ivan D.]

Originally Posted by dubdeuce80

yes, yes, and LOUD. they were actually pretty clean sounding, not the obnoxious open headers kind of loud. the packs muffled them a bit and made it sound smooth

I take it as you're running manifolds, and not actual headers? Those will make it sound like you say, open headers are just a pain in the ass - I ran my truck with just headers and turndowns and it was alright, I ran it with open headers and the maintenance crews at school nicknamed it "the Sherman tank" lol

[liljon285]

got a vid?

[Yankeelights]

Good God no! The last thing I want is the FEDEX truck passing me up hill video documented!

[Ivan D.]

Here's my new exhaust, finally got tired of blowing my eardrums when shifting at 3500rpms:











Consists of two long-tube headers, two 18"-long S-bent Headman header Extensions, two 18"-long straight exhaust tubing pieces, two cheap Super Turbo mufflers, one 18"-long straight exhaust tubing piece cut in half and an angle to form the slanted "tips", six heavy-duty clamps, and two heavy-duty US-made hangers. Exhaust is 2.5" diameter all the way, and cost me right about $100 grand total. And yes it's a very close call on the passenger side over the tranny crossmember, and yes both pipes run right about an inch under the floorboards, so no I don't really need a heater with that setup, and yes I love the way it fits and sounds

[dubdeuce80]

Originally Posted by Ivan D.

I take it as you're running manifolds, and not actual headers? Those will make it sound like you say, open headers are just a pain in the ass - I ran my truck with just headers and turndowns and it was alright, I ran it with open headers and the maintenance crews at school nicknamed it "the Sherman tank" lol

i'm actually running hedman shortys

Originally Posted by liljon285

got a vid?

if this was to me... http://youtube.com/watch?v=v5ggrk9nqqk

about 1:50 in i move down to the exhaust

[Ivan D.]

Originally Posted by dubdeuce80

i'm actually running hedman shortys

Any particular advantage to running long-tubes?

[liljon285]

Nice it sounds great, but thats idle revved upp can be completely diffrent!lol

[dubdeuce80]

Originally Posted by Ivan D.

Any particular advantage to running long-tubes?

not that i know of, i was just scraping long tubes everywhere i went

Originally Posted by liljon285

Nice it sounds great, but thats idle revved upp can be completely diffrent!lol

true true, but it didn't sound bad revved, kept the deep sound

[Ivan D.]

Originally Posted by dubdeuce80

not that i know of, i was just scraping long tubes everywhere i went

Yeah, lotsa folks complain from that, solution seems to be long-tube headers for a Monte Carlo, and judging by how high off the ground the flanges of my headers are I bet that's exactly what I have in my truck. Actually initially I wanted to do side exhaust behind the front tires, cause noone seems to have it and it's be pretty sweet, but there was no way I do that with the current headers, and I couldn't afford new longer headers... Will eventually do it, maybe next summer - nothing like the unmuffled sound of a 350 roaring straight at everyone who passes by

By the way, with yer glasspacks hanging so down low, aren't you scraping again, even with the shorties?

[babyJay]

Originally Posted by liljon285

my crossmember is completely diffrent.

Yours must be 2WD, mines 4x4. Sorry

[wedgemon]

Here's shots from my 80....

















Hope this helps ya!

- Dave

[Yankeelights]

Yes, it does help, thanks ... damn, that's a tight fit around that transfer case!

Where do I find header flanges like that?

~ Dave

[wedgemon]

Originally Posted by Yankeelights

Yes, it does help, thanks ... damn, that's a tight fit around that transfer case!

Where do I find header flanges like that?

The pipes are Hooker from summit. The passenger side pipe IS tight! The flange is a product called "Header Buddy". I had trouble with mis-alignment ( That right side pipe again!) and leaks. This fixed it. http://www.headerbuddy.com



- Dave

[Nachos82]

Here is a shot of dual's out in front the rear tires. The pictures are not to good, but they can help a little bit. I believe they are 2 1/4" from the headers into glasspacks.

[benoit454]

Do thoose header buddies require you to cut your exsisting header flange off of the header itself and weld thoose on? or do you only have to cut your pipe/reducer off and weld that on your pipe then it fits up to the back of the standard flange headers?

I know the ball and socket deals you have to cut the headers and the lead pipe and put thoose on. Looks like you only have to do the pipes on that setup and not the headers.

[Yankeelights]

Thanks for the link to Headerbuddy ... added a pair to my shopping list.

Nacho, I wish I could keep my undercarriage that clean! My 71 had a similar setup .. I miss that growling exhaust.

Anyone know how many different crossmembers were available on the 2wd 73-87s?

~ Dave