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Old 03-13-2015, 10:25 PM   #1
WarMonger
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Exhaust manifold

Will these fit on a late 70's 350?
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Old 03-13-2015, 10:27 PM   #2
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Re: Exhaust manifold

Sorry attachment follows
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Old 03-13-2015, 10:53 PM   #3
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Re: Exhaust manifold

Yes.
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Old 03-13-2015, 10:54 PM   #4
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Re: Exhaust manifold

yes, hard to tell from the pic but the one on the left looks like there is a bracket on it, or a stain in the concrete??
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Old 03-14-2015, 05:59 AM   #5
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Re: Exhaust manifold

they have quite a dump angle to it, I wonder if they'll interfere with any thing, (Z bar if you have standard tranny) Also I see the heat riser is on the driver side exhaust..
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Old 03-14-2015, 02:27 PM   #6
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Re: Exhaust manifold

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Originally Posted by seattle gmc View Post
yes, hard to tell from the pic but the one on the left looks like there is a bracket on it, or a stain in the concrete??
This is the same manifold bolted on the driver side of my '72, but it is not original to my truck.

It is cast right onto the manifold...not a bracket. There is a threaded boss in the forward end of it where the lower (pivot) bolt to my alternator attaches.
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Old 05-14-2015, 10:09 AM   #7
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Re: Exhaust manifold

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Sorry attachment follows
If I were to run these Ram Horns, Do I/should I run heat shields for the spark plugs?
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Old 05-14-2015, 10:23 AM   #8
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Re: Exhaust manifold

Those will "fit" any SBC from a 283 to a 400.

I have always used heat shields with manifolds.

Gary
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My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread.

The Rebuild of Creeping Death after the wreck

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I would never rebuild a 305.
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I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
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Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
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Old 05-14-2015, 10:57 AM   #9
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Re: Exhaust manifold

My truck had ramhorns with no shields and it never caused problems. But my plug wires were run underneath.
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Old 05-14-2015, 11:19 AM   #10
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Re: Exhaust manifold

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Originally Posted by GASoline71 View Post
Those will "fit" any SBC from a 283 to a 400.

I have always used heat shields with manifolds.

Gary
Get them from LMC?
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Old 05-14-2015, 11:56 AM   #11
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Re: Exhaust manifold

those are what were used on the 67 c10`s with a 283. pretty sure they were on the previus years with a 283 also.
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Old 05-14-2015, 12:16 PM   #12
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Re: Exhaust manifold

Do I want to use the used ones I found, or should I get some ones from LMC? If I go with LMC, which ones do i want to put on a 383 stroker?
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1972 K5
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Old 05-14-2015, 12:36 PM   #13
michael bustamante
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Re: Exhaust manifold

you will definatly like the angle dumps better if yours is a 2wd. the straight dumps are more for 4wd
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Old 05-14-2015, 12:53 PM   #14
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Re: Exhaust manifold

Quote:
Originally Posted by michael bustamante View Post
you will definatly like the angle dumps better if yours is a 2wd. the straight dumps are more for 4wd
So just run the ones i have in the pics of the beginning of this thread?
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-_--_-_ |_(0)|__|_(0)]
1972 K5
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Old 05-14-2015, 01:13 PM   #15
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Re: Exhaust manifold

Quote:
Originally Posted by WarMonger View Post
Get them from LMC?
I have only purchased one item from LMC (transmission cooler lines) so I really can't comment to what they offer. I'd just use the ones you have.

Gary
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My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread.

The Rebuild of Creeping Death after the wreck

Quote:
Originally Posted by LONGHAIR View Post
I would never rebuild a 305.
Quote:
Originally Posted by prostreetC-10 View Post
I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
Quote:
Originally Posted by Marv D View Post
Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
Quote:
Originally Posted by cableguy0 View Post
Its cheaper to listen to advice given when you ask for help than it is to ignore everyone and wait for carnage.
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Old 05-14-2015, 08:52 PM   #16
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Re: Exhaust manifold

I have purchased a ramshorn from LMC, and it fit without any issues and sealed up nicley.

Notice that i wrote ramshorn and not ramshorns. I bought the other one from Roc Auto since it was cheaper. That side of the engine is still leaking, and what they sent me was not what was described.
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