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Old 05-09-2011, 02:18 PM   #1
nerphin
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The exhaust LMC sells, installed.

I finally got around to installing the dual heartthrob exhaust that I bought from LMC. It is this one here:



Took about a day of tinkering to get the old one out and line this one up. I was impressed with the fit and alignment of the tail pipes, it turned out just how I pictured it looking. It is no where near the sound of flowmaster 40 series (I wanted something quieter) but it still has a nice grunt to it. Performance wise, it is still a 1978 3/4 ton





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Old 05-09-2011, 03:50 PM   #2
Chris Guthro
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Re: The exhaust LMC sells, installed.

What did it cost including shipping? im comparing costs to what my local muffler shop quoted me for
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Old 05-09-2011, 04:18 PM   #3
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Re: The exhaust LMC sells, installed.

Looks like it turned out nice.
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Old 05-09-2011, 04:25 PM   #4
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Re: The exhaust LMC sells, installed.

Quote:
Originally Posted by Chris Guthro View Post
What did it cost including shipping? im comparing costs to what my local muffler shop quoted me for
X2. The glasspacks in the truck I bought are too loud for long trips, And I need something quieter.
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Old 05-09-2011, 04:32 PM   #5
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Re: The exhaust LMC sells, installed.

Quote:
Originally Posted by Chris Guthro View Post
What did it cost including shipping? im comparing costs to what my local muffler shop quoted me for
Just under 400 bucks CAD total. The exchange rate is a little better now though.


And one more pic:

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Old 05-27-2011, 01:29 PM   #6
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Re: The exhaust LMC sells, installed.

Here are some more pics:









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Old 05-27-2011, 02:22 PM   #7
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Re: The exhaust LMC sells, installed.

In the pictures it looks like the tail pipes are making contact with the frame rails and the bottom of the bed as they go over the rear axle. Is that just an optical conclusion?
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Old 05-27-2011, 02:33 PM   #8
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Re: The exhaust LMC sells, installed.

Quote:
Originally Posted by PRattenbury View Post
In the pictures it looks like the tail pipes are making contact with the frame rails and the bottom of the bed as they go over the rear axle. Is that just an optical conclusion?
Yeah, bit of an illusion. There is about an inch of clearance from both the frame rails and the underside of the bed. I wanted the pipes up as high as possible without rattling against anything.
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Old 05-27-2011, 03:16 PM   #9
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Re: The exhaust LMC sells, installed.

I got my exhaust put in and did not realize right away the tailpipe on the right side was hitting the bottom of the bed. It made a bit of a racket.
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Old 05-27-2011, 03:17 PM   #10
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Re: The exhaust LMC sells, installed.

Lookin' good. I had a Heartthrob kit for my old Camaro, that I never did get around to installing before I had to sell the car. But I was super excited to hear it, the pipe pieces were really nice, and your kit looks like the same quality from what i can tell. Hope it treats you well!
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Old 05-27-2011, 10:09 PM   #11
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Re: The exhaust LMC sells, installed.

It looks good and appears to fit great. I'd kind of like to go one size up and find a 2.5" kit for my dually big block.
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Old 05-28-2011, 08:08 PM   #12
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Re: The exhaust LMC sells, installed.

Thanks for the pics. I have the exact same system still in boxes ready to go on my 81 2500.
Thanks again,

Jim P
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Old 04-07-2015, 06:55 AM   #13
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Re: The exhaust LMC sells, installed.

Thanks for the photos I'm in a mix between this and local installer price. How long are those mufflers?
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Old 04-07-2015, 09:06 AM   #14
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Re: The exhaust LMC sells, installed.

looks good,tucks up well
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Old 05-15-2015, 09:36 AM   #15
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Re: The exhaust LMC sells, installed.

I am in the process of installing this same exhaust on my 87 Suburban.
the exhaust bolts up great and fits good, but the exhaust hangers they sent me are different than the ones in your pics.
The sent me 4 4" long straps of rubber with holes in it with a lip at the bottom??? There is nothing to attach these to under my truck. Did those hangers come with your exhaust or did you have to buy them afterwards?
May just take it to a muffler shop next week to have them weld in place.
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Old 05-15-2015, 10:03 AM   #16
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Quote:
Originally Posted by jimbonice View Post
X2. The glasspacks in the truck I bought are too loud for long trips, And I need something quieter.
Tip:
If there is room, install baffle type mufflers in before or after the glasspacks. Both mufflers work very well together at canceling out the noise. The baffle mufflers remove the low frequency and the glasspacks remove the high frequency.
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Old 05-15-2015, 10:45 AM   #17
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Re: The exhaust LMC sells, installed.

How did cost compare to getting something done locally? Did you bring it across the border yourself?
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Old 05-18-2015, 11:25 PM   #18
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Re: The exhaust LMC sells, installed.

Did it bolt right up to stock cast iron exhaust manifolds? And what type would those have been in 1978?
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Old 05-19-2015, 07:36 AM   #19
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Re: The exhaust LMC sells, installed.

Mine did, bolted up just fine to the stock manifolds. My kit just came with som exhaust hangers that could not be used with my truck. Got it at the exhaust shop now getting some hangers welded.
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Old 05-19-2015, 09:09 AM   #20
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Re: The exhaust LMC sells, installed.

Quote:
Originally Posted by MikeB View Post
Did it bolt right up to stock cast iron exhaust manifolds? And what type would those have been in 1978?
both my 78s and 79s had this type of manifold,custom bent tho,I was able to remove the heat riser too
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1987 Suburban4X4-writeoff hit while parked RIPzez
1988 Suburban4X4-writeoff hit while parked RIPzez
1989 Suburban4X2 - square igloo/SOLD
2002 Fleetwood
2005 Malibu hit by City bus,2nd time a write-off(01/15/16)
2010 Dodge Van-writeoff hit while parked(01/14/15)

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Old 05-19-2015, 09:18 AM   #21
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Re: The exhaust LMC sells, installed.

Looks great. Went with the Turbo mufflers off the same catalog, keeps it extra quiet.
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Old 05-19-2015, 09:55 AM   #22
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Re: The exhaust LMC sells, installed.

Quote:
Originally Posted by Nodnarb76 View Post
I am in the process of installing this same exhaust on my 87 Suburban.
the exhaust bolts up great and fits good, but the exhaust hangers they sent me are different than the ones in your pics.
The sent me 4 4" long straps of rubber with holes in it with a lip at the bottom??? There is nothing to attach these to under my truck. Did those hangers come with your exhaust or did you have to buy them afterwards?
May just take it to a muffler shop next week to have them weld in place.
you may find a spot to make your own holes to fit the hangers,I have a set of hangers off the bottom of the Jimmy seat bolts as well
Attached Images
  
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1978 Suburban4X2-hit while parked RIPzez
1978 GMCJimmy4X4-350/203http://67-72chevytrucks.com/vboard/s...=421767&page=4
1979 GMCJimmy4X2-305/350http://67-72chevytrucks.com/vboard/s...=1#post5200107
1987 Suburban4X4-writeoff hit while parked RIPzez
1988 Suburban4X4-writeoff hit while parked RIPzez
1989 Suburban4X2 - square igloo/SOLD
2002 Fleetwood
2005 Malibu hit by City bus,2nd time a write-off(01/15/16)
2010 Dodge Van-writeoff hit while parked(01/14/15)

Now I just buy shorter trucks!
Love em low,but get me higher
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